context: We believe that Julius is a frog. Chances are slight that Daniel left the football. It is impossible that Mary dropped the milk.
hypothesis: Chances are slight that daniel left the football, and Julius is a frog.
valid_hypothesis: Chances are slight that daniel left the football, and Julius is a frog.
invalid_hypothesis: It is certain that daniel left the football, and Julius is a frog.
hypothesis_assertion: Daniel left the football, and Julius is a frog.