Question: Information:  - Kleanthis Vikelides ( Greek :   ; 23 October 1916 -- 4 November 1988 ) was a Greek footballer who played for Aris Thessaloniki and the Greece national football team . He was also a manager , taking charge of Aris Thessaloniki , PAOK and Apollon Kalamaria . Vikelides was born in 1916 in Thessaloniki and was the youngest of the three Vikelides brothers that played for Aris F.C. , the others being Kostas and Nikiforos . He was instrumental in Aris winning the Greek Championship in 1932 and 1946 , given the nickname ' Macedonian Tank ' . During his career , Vikelides was capped 7 times by the Greek National Football Team , scoring 4 goals . Vikelidis coached Aris Thessaloniki twice in 1954 and 1959 and later continued his managing career with PAOK during the 1957 season and Apollon Kalamaria during the 1961 season . In his honour , Aris FC named the stadium at Charilaou , Thessaloniki Kleanthis Vikelides Stadium .  - Central Macedonia is one of the thirteen administrative regions of Greece, consisting of the central part of the geographical and historical region of Macedonia. With a population of almost 1.9 million, it is the second most populous in Greece after Attica.  - The Ludovisi Ares is an Antonine Roman marble sculpture of Mars, a fine 2nd-century copy of a late 4th-century BCE Greek original, associated with Scopas or Lysippus: thus the Roman god of war receives his Greek name, Ares.  - Yellow is the color between green and orange in the spectrum of visible light. It is the color of ripe lemons, sunflowers, and gold. It is a primary color in subtractive color, used in color printing. According to surveys in Europe, Canada, and the United States, yellow is the color people most often associate with amusement, gentleness, and spontaneity, but also with duplicity, envy, jealousy, avarice, and, in the U.S., with cowardice. It plays an important role in Asian culture, particularly in China, where it is seen as the color of happiness, glory, wisdom, harmony, and culture.  - Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe.  Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki.  - Constantinople  was the capital city of the Roman/Byzantine Empire (3301204 and 12611453), and also of the brief Latin (12041261), and the later Ottoman (14531923) empires. It was reinaugurated in 324 AD from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, and dedicated on 11 May 330 AD.  - Athlitikos Syllogos Aris (Athletic Club Aris or "Athletic Club Aris Thessaloniki" in other documents) officially A.C. Aris Thessaloniki, is a major Greek multi-sport club founded on 25 March 1914 in Thessaloniki. The club's colours are yellow of glory and black. The club is named after Ares, the ancient Greek God of War, but also associated with courage and masculinity, inspired by the successful military operations of the Kingdom of Greece during the Balkan Wars, and the liberation of Thessaloniki in 1912 from the Ottoman empire. Its image (as depicted in the Ludovisi Ares) is portrayed on the club's emblem.  - Thessaloniki is the second-largest city in Greece and the capital of Greek Macedonia, the administrative region of Central Macedonia and the Decentralized Administration of Macedonia and Thrace. Its nickname is   ("Symprotévousa"), literally "the co-capital", a reference to its historical status as the  ("Symvasilévousa") or "co-reigning" city of the Eastern Roman (Byzantine) Empire, alongside Constantinople.  - Black is the darkest color resulting from the absence or complete absorption of light. Like white and grey, it is an achromatic color, literally a color without hue. It is one of the four primary colors in the CMYK color model, along with cyan, yellow, and magenta, used in color printing to produce all the other colors. Black is often used to represent darkness; it is the symbolic opposite of white (or brightness).  - The Greek national football team represents Greece in association football and is controlled by the Hellenic Football Federation, the governing body for football in Greece. Greece's home ground is Karaiskakis Stadium in Piraeus. Greece is one of only ten national teams to have been crowned UEFA European Champions.  - The Hellenic Football Federation (HFF); also known as the Greek Football Federation is the governing body of football in Greece. It contributes in the organisation of Super League Greece and organizes the Greek football Cup and the Greece national football team. It is based in Athens.  - The Balkan Wars (literally "the Balkan Wars" or "Balkan Facias", meaning "the Balkan Tragedy") consisted of two conflicts that took place in the Balkan Peninsula in south-eastern Europe in 1912 and 1913. Four Balkan states defeated the Ottoman Empire in the first war; one of the four, Bulgaria, suffered defeat in the second war. The Ottoman Empire lost the bulk of its territory in Europe. Austria-Hungary, although not a combatant, became relatively weaker as a much enlarged Serbia pushed for union of the South Slavic peoples. The war set the stage for the Balkan crisis of 1914 and thus served as a "prelude to the First World War".  - The Kingdom of Greece (Greek: , "Vasíleion ts Elládos") was a state established in 1832 at the Convention of London by the Great Powers (the United Kingdom, France and the Russian Empire). It was internationally recognized by the Treaty of Constantinople, where it also secured full independence from the Ottoman Empire. This event also marked the birth of the first, fully independent, Greek state since the fall of the Byzantine Empire to the Ottomans in the mid-15th century.  - Ares is the Greek god of war. He is one of the Twelve Olympians, and the son of Zeus and Hera. In Greek literature, he often represents the physical or violent and untamed aspect of war, in contrast to his sister the armored Athena, whose functions as a goddess of intelligence include military strategy and generalship.  - The Ottoman Empire ('; Modern Turkish: ' or '), also known as the Turkish Empire, Ottoman Turkey, was an empire founded at the end of the thirteenth century in northwestern Anatolia in the vicinity of Bilecik and Söüt by the Oghuz Turkish tribal leader Osman. After 1354, the Ottomans crossed into Europe, and with the conquest of the Balkans the Ottoman Beylik was transformed into a transcontinental empire. The Ottomans ended the Byzantine Empire with the 1453 conquest of Constantinople by Mehmed the Conqueror.  - Football is a highly popular sport in Greece. History of Greek football. The Ancient Greeks are known to have played many ball games, some of which involved the use of the feet. The Roman game "harpastum" is believed to have been adapted from a Greek team game known as "" ("Episkyros") or "" ("phaininda"), which is mentioned by a Greek playwright, Antiphanes (388311 BC) and later referred to by the Christian theologian Clement of Alexandria (c.150-c.215 AD). These games appear to have resembled rugby football.  - Piraeus ("Pireás" , , "Peiraieús") is a port city in the region of Attica, Greece. Piraeus is located within the Athens urban area, southwest from its city center (municipality of Athens), and lies along the east coast of the Saronic Gulf.    What entity does 'kleanthis vikelidis' has the relation 'ethnic group' with?
Answer:
greeks