Task: Question Answering
Input (English): passage: A sphere (from Greek σφαῖρα -- sphaira, ``globe, ball'') is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball (viz., analogous to the circular objects in two dimensions, where a ``circle'' circumscribes its ``disk'').
 question: is a circle and a sphere the same?
Output (English): No