Sentence: AEK Athens F.C. whose grounds are in Athens, play in the Superleague Greece, the previous champions of which were Olympiacos FC. What data can be extracted from this sentence?
A: AEK Athens F.C., league, Superleague Greece; Superleague Greece, champions, Olympiacos F.C.; AEK Athens F.C., ground, Athens

Sentence: John van den Brom, manager of AZ Alkmaar, plays for De Graafschap. What data can be extracted from this sentence?
A: AZ Alkmaar, manager, John van den Brom; John van den Brom, club, De Graafschap

Sentence: A Wizard of Mars was written in English, a language spoken in Great Britain. However it is published in the United States where the leader is Barack Obama and one of the ethnic groups are the Native Americans. What data can be extracted from this sentence?
A: United States, leader, Barack Obama; A Wizard of Mars, language, English language; English language, spokenIn, Great Britain; A Wizard of Mars, country, United States; United States, ethnicGroup, Native Americans in the United States

Sentence: An ethnic group of Poland is the Kashubians. What data can be extracted from this sentence?
A:
Poland, ethnicGroup, Kashubians