Information:  - Burg Heinfels is a castle in Heinfels , Tyrol , Austria . It stands in the Puster Valley , near the entrance to the Villgraten Valley . Although the town was first settled by Huns around 500AD , a castle was not mentioned until 1243 . It belonged to the County of Gorz , and was expanded on the west side in 1500 . In 1526 , it was besieged by Michael Gaismair and 2,000 soldiers seeking to overthrow Catholic rule in the area . Today it is privately owned .  - East Tyrol, occasionally East Tirol, is an exclave of the Austrian state of Tyrol, separated from the main North Tyrol part by the short common border of Salzburg and Italian South Tyrol ("Südtirol"). It is congruent with the administrative district ("Bezirk") of Lienz.  - The Alps are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across eight Alpine countries: Austria, France, Germany, Italy, Liechtenstein, Monaco, Slovenia, and Switzerland. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn. Mont Blanc spans the FrenchItalian border, and at is the highest mountain in the Alps. The Alpine region area contains about a hundred peaks higher than 4000 metres (just over 13,000 feet).  - The Puster Valley ( Ladin: "Val de Puster") is a valley in the Alps that runs in an east-west direction between Lienz in East Tyrol, Austria and Mühlbach near Brixen in South Tyrol, Italy. The municipalities of the Puster Valley constitute the Puster Valley district.  - Brixen (Ladin: "Porsenù" or "Persenon") is a town in South Tyrol in northern Italy, located about north of Bolzano.  - South Tyrol (German and ), also known by its alternative Italian name Alto Adige, is an autonomous province in northern Italy. It is one of the two autonomous provinces that make up the autonomous region of Trentino-Alto Adige/Südtirol. The province has an area of and a total population of 511,750 inhabitants (31.12.2011). Its capital is the city of Bolzano (German: "Bozen"; Ladin: "Balsan" or "Bulsan"). According to 2014 data based on the 2011 census, 62.3 percent of the population speaks German (Standard German in the written norm and an Austro-Bavarian dialect in the spoken form); 23.4 percent of the population speaks Italian, mainly in and around the two largest cities (Bolzano and Merano); 4.1 percent speaks Ladin, a Rhaeto-Romance language; 10.2% of the population (mainly recent immigrants) speaks another language as first language.  - Italy, officially the Italian Republic, is a unitary parliamentary republic in Europe. Located in the heart of the Mediterranean Sea, Italy shares open land borders with France, Switzerland, Austria, Slovenia, San Marino and Vatican City. Italy covers an area of and has a largely temperate seasonal climate and Mediterranean climate; due to its shape, it is often referred to in Italy as "lo Stivale" (the Boot). With 61 million inhabitants, it is the fourth most populous EU member state.  - Heinfels is a municipality in the district of Lienz in the Austrian state of Tyrol. It is most known as the site of Burg Heinfels.  - Lienz is a medieval town in the Austrian state of Tyrol. It is the administrative centre of the Lienz district, which covers all of East Tyrol. The municipality also includes the cadastral subdivision of "Patriasdorf".    After reading the paragraphs above, we are interested in knowing the entity with which 'heinfels castle' exhibits the relationship of 'located in the administrative territorial entity'. Find the answer from the choices below.  Choices: - austria  - bolzano  - burg  - centre  - district  - east  - east tyrol  - eu  - europe  - germany  - italy  - liechtenstein  - most  - north  - northern  - of  - salzburg  - san marino  - south  - south tyrol  - switzerland  - tyrol  - west
The answer to this question is:
east tyrol