Problem: Eleftheria Arvanitaki (Greek: ) (born October 17, 1957 in Piraeus) is a Greek folk singer. She originates from the island of Icaria. Arvanitaki has worked with important musicians, such as Cesaria Evora, Arto Tuncboyacyan, Ara Dinkjian. On 14 March 2010, Alpha TV ranked her the sixth top-certified female artist in the nation's phonographic era (since 1960).

Based on the paragraph above can we conclude that "Eleftheria Arvanitaki sang in Athens with Cesaria Evora."?

A: It's impossible to say

Problem: The 2014 NASCAR Sprint All-Star Race (XXX) was a NASCAR Sprint Cup Series stock car race held on May 17, 2014, at Charlotte Motor Speedway in Concord, North Carolina. Contested over 90laps, it was the second exhibition race of the 2014 NASCAR Sprint Cup Series.

Based on the paragraph above can we conclude that "There are a total of exhibition races in the NASCAR Sprint Cup Series. "?

A: It's impossible to say

Problem: The Chandrasekhar family is an Indian intellectual family. Several members of the family have achieved scientific distinction, notably in the field of physics. Two members of the family, Sir C. V. Raman and his nephew, Subrahmanyan Chandrasekhar, were Nobel laureates in physics.

Based on the paragraph above can we conclude that "The Chandrasekhar family are mostly known for math."?

A:
No