Information: - A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land. Port locations are selected to optimize access to land and navigable water, for commercial demand, and for shelter from wind and waves. Ports with deeper water are rarer, but can handle larger ships. Since ports throughout history handled every kind of traffic, support and storage facilities vary widely, may extend for miles, and dominate the local economy. Some ports have an important military role. - The 2012 Summer Olympics, formally the Games of the XXX Olympiad and commonly known as London 2012, was a major international multi-sport event celebrated in the tradition of the Olympic Games, as governed by the International Olympic Committee (IOC). It took place in London and to a lesser extent across the United Kingdom from 25 July to 12 August 2012. The first event, the group stage in women's football began on 25 July at the Millennium Stadium in Cardiff, followed by the opening ceremonies on 27 July. 10,768 athletes from 204 National Olympic Committees (NOCs) participated. - Athens ("Athina" ) is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, with its recorded history spanning over 3,400 years, and its earliest human presence starting somewhere between the 11th and 7th millennia BC. Classical Athens was a powerful city-state that emerged in conjunction with the seagoing development of the port of Piraeus, which had been a distinct city prior to its 5th century BC incorporation with Athens. A centre for the arts, learning and philosophy, home of Plato's Academy and Aristotle's Lyceum, it is widely referred to as the cradle of Western civilization and the birthplace of democracy, largely because of its cultural and political impact on the European continent, and in particular the Romans. In modern times, Athens is a large cosmopolitan metropolis and central to economic, financial, industrial, maritime, political and cultural life in Greece. In 2015, Athens was ranked the world's 29th richest city by purchasing power and the 67th most expensive in a UBS study. - Volos is a coastal port city in Thessaly situated midway on the Greek mainland, about north of Athens and south of Thessaloniki. It is the capital of the Magnesia regional unit. Volos is the only outlet to the sea from Thessaly, the country's largest agricultural region. With a population of 144,449 (2011), it is an important industrial centre, while its port provides a bridge between Europe, the Middle East and Asia. - Maria Tsiartsiani (born 21 October 1980 in Thessaloniki) is a Greek Olympic beach volleyballer. She competed at the 2008 Summer Olympics, partnering with Efthalia Koutroumanidou. At the 2012 Summer Olympics, she competed with Vassiliki Arvaniti. - Efthalia '' Thaleia '' Koutroumanidou ( Greek : '' '' ; born 7 October 1982 in Volos ) is a Greek Olympic beach volleyballer at the 2008 Summer Olympics and the 2004 Athens Olympics . She is partnered with Maria Tsiartsiani . - Vassiliki Arvaniti (born March 17, 1985 in Athens, Greece) is a female beach volleyball player from Greece, who won the gold medal at the 2005 European Championships in Moscow, Russia and the 2007 European Championship in Valencia, Spain, partnering Vasso Karadassiou. She represented her native country at the 2004 Summer Olympics in her home town, with Thaleia Koutroumanidou. At the 2008 Summer Olympics, she competed with Karadassiou. Later, she took part in the 2012 London Olympics with Maria Tsiartsiani who was later injured. Since 2013, her teammate has been Peny Karagkouni who used to play indoor volleyball. - Beach volleyball is a team sport played by two teams of two players on a sand court divided by a net. It has been an Olympic discipline since the 1996 Games. - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law. What object entity has the relation of 'occupation' with the subject 'efthalia koutroumanidou'? Choices: - beach volleyball - beach volleyball player - commercial - general - major - prior - united kingdom - volleyball player
beach volleyball player