Information:  - The Frankfurt Book Fair (FBF) is the world's largest trade fair for books, based on the number of publishing companies represented, and the second largest trade fair for books based on the number of visitors after Turin International Book Fair  - The Haus des Rundfunks ("House of Broadcasting"), located in the Westend district of Berlin, Germany, is the oldest self-contained broadcasting house in the world. It was designed by Hans Poelzig in 1929 after winning an architectural competition. The building vis-à-vis the Funkturm contains three large broadcasting rooms located in the centre, shielded from street noise by the surrounding office wings. It is now used by the local ARD broadcaster Rundfunk Berlin-Brandenburg (RBB) and produces radio programs for the channels "radioBerlin", "Kulturradio", and "Inforadio". The building's broadcasting rooms are occasionally also used to host concerts.  - The Berliner Funkturm or Funkturm Berlin ( Berlin Radio Tower ) is a former broadcasting tower in Berlin . Constructed between 1924 and 1926 to designs by the architect Heinrich Straumer , it was inaugurated on 3 September 1926 , on the occasion of the opening of the third Große Deutsche Funkausstellung ( Great German Radio Exhibition ) in the grounds of the Messe Berlin trade fair in the borough of Charlottenburg - Wilmersdorf . Nicknamed der lange Lulatsch ( `` the lanky lad '' ) , the tower is one of the best - known points of interest in the city of Berlin and , while no longer used for broadcasting purposes , it remains a protected monument .  - Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry. When a large group has multiple sources of revenue generation, it is considered to be working in different industries. Manufacturing industry became a key sector of production and labour in European and North American countries during the Industrial Revolution, upsetting previous mercantile and feudal economies. This came through many successive rapid advances in technology, such as the production of steel and coal.  - A market trend is a perceived tendency of financial markets to move in a particular direction over time. These trends are classified as "secular" for long time frames, "primary" for medium time frames, and "secondary" for short time frames. Traders attempt to identify market trends using technical analysis, a framework which characterizes market trends as predictable price tendencies within the market when price reaches support and resistance levels, varying over time.  - The Havel is a river in north-eastern Germany, flowing through the German states of Mecklenburg-Vorpommern, Brandenburg, Berlin and Saxony-Anhalt. It is a right tributary of the Elbe river and long. However, the direct distance from its source to its mouth is only .  - An urban area is a human settlement with high population density and infrastructure of built environment. Urban areas are created through urbanization and are categorized by urban morphology as cities, towns, conurbations or suburbs. In urbanism, the term contrasts to rural areas such as villages and hamlets and in urban sociology or urban anthropology it contrasts with natural environment. The creation of early predecessors of urban areas during the urban revolution led to the creation of human civilization with modern urban planning, which along with other human activities such as exploitation of natural resources leads to human impact on the environment.  - A professional is a member of a profession or any person who earns their living from a specified professional activity. The term also describes the standards of education and training that prepare members of the profession with the particular knowledge and skills necessary to perform their specific role within that profession. In addition, most professionals are subject to strict codes of conduct, enshrining rigorous ethical and moral obligations. Professional standards of practice and ethics for a particular field are typically agreed upon and maintained through widely recognized professional associations, such as the IEEE. Some definitions of "professional" limit this term to those professions that serve some important aspect of public interest and the general good of society.  - The Spree is a river that flows through the Saxony, Brandenburg and Berlin states of Germany, and in the Ústí nad Labem region of the Czech Republic. Approximately in length, it is a left bank tributary of the River Havel, which itself flows into the Elbe and then the North Sea. It is the river on which the original centre of Berlin was built.  - Germany, officially the Federal Republic of Germany, is a federal parliamentary republic in central-western Europe. It includes 16 constituent states, covers an area of , and has a largely temperate seasonal climate. With about 82 million inhabitants, Germany is the most populous member state of the European Union. After the United States, it is the second most popular immigration destination in the world. Germany's capital and largest metropolis is Berlin. Other major cities include Hamburg, Munich, Cologne, Frankfurt, Stuttgart and Düsseldorf.  - Berlin is the capital and the largest city of Germany as well as one of its constituent 16 states. With a population of approximately 3.5 million people, Berlin is the second most populous city proper and the seventh most populous urban area in the European Union. Located in northeastern Germany on the banks of rivers Spree and Havel, it is the centre of the Berlin-Brandenburg Metropolitan Region, which has about 6 million residents from more than 180 nations. Due to its location in the European Plain, Berlin is influenced by a temperate seasonal climate. Around one-third of the city's area is composed of forests, parks, gardens, rivers and lakes.  - A trade fair (trade show, trade exhibition, or expo) is an exhibition organized so that companies in a specific industry can showcase and demonstrate their latest products and services, meet with industry partners and customers, study activities of rivals, and examine recent market trends and opportunities. In contrast to consumer fairs, only some trade fairs are open to the public, while others can only be attended by company representatives (members of the trade, e.g. professionals) and members of the press, therefore trade shows are classified as either "public" or "trade only". A few fairs are hybrids of the two; one example is the Frankfurt Book Fair, which is trade only for its first three days and open to the general public on its final two days. They are held on a continuing basis in virtually all markets and normally attract companies from around the globe. For example, in the U.S., there are currently over 10,000 trade shows held every year, and several online directories have been established to help organizers, attendees, and marketers identify appropriate events.  - Charlottenburg-Wilmersdorf is the fourth borough of Berlin, formed in an administrative reform with effect from 1 January 2001, by merging the former boroughs of Charlottenburg and Wilmersdorf.  - Wilmersdorf, an inner-city locality of Berlin, lies south-west of the central city. Formerly a borough by itself, Wilmersdorf became part of the new borough of Charlottenburg-Wilmersdorf in Berlin's 2001 administrative reform.  - The European Plain or Great European Plain is a plain in Europe and is a major feature of one of four major topographical units of Europe - the "Central and Interior Lowlands". It is the largest mountain-free landform in Europe, although a number of highlands are identified within it.  - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency.  - The (Exhibition Grounds/Trade Fair Center) in Berlin is situated in Berlin-Westend, in the Charlottenburg-Wilmersdorf precinct at Masurenallee opposite the Haus des Rundfunks. Since 2011, the grounds are officially known as "Berlin ExpoCenter City", operated by the Messe Berlin GmbH company.  - Brandenburg (Lower Sorbian: "Bramborska") is one of the sixteen federated states of Germany. It lies in the northeast of the country covering an area of 29,478 square kilometers and has 2.48 million inhabitants. The capital and largest city is Potsdam. Brandenburg surrounds but does not include the national capital and city-state Berlin forming a metropolitan area.  - Charlottenburg is an affluent locality of Berlin within the borough of Charlottenburg-Wilmersdorf. Established as a town in 1705 and named after late Sophia Charlotte of Hanover, Queen consort of Prussia, it is best known for Charlottenburg Palace, the largest surviving royal palace in Berlin, and the adjacent museums.    What is the relationship between 'funkturm berlin' and 'westend'?
located in the administrative territorial entity