Problem: In mathematics, an O*-algebra is an algebra of possibly unbounded operators defined on a dense subspace of a Hilbert space. The original examples were described by and , who studied some examples of O*-algebras, called Borchers algebras, arising from the Wightman axioms of quantum field theory. and began the systematic study of algebras of unbounded operators.

Based on the paragraph above can we conclude that "O*-algebra is taught in highschool."?

A: It's impossible to say


Problem: Wayne Philip Colin Sleep OBE (born 17 July 1948) is a British dancer, director, choreographer, actor and panellist. He was a Principal Dancer with the Royal Ballet and has appeared as a Guest Artist with several other ballet companies. He was a judge on the ITV entertainment series "Stepping Out".

Based on the paragraph above can we conclude that "Sleep loved broccoli."?

A: It's impossible to say


Problem: The two sectors of the divided island of Cyprus held a referendum on reunification on Saturday, April 24, 2004.

Based on the paragraph above can we conclude that "Cyprus held a referendum in 2004."?

A: