context: It is impossible that Mary left the apple. It is unlikely that John took the milk. There is little chance that Greg is a rhino.
hypothesis: It is probably not the case that greg is a rhino, or John took the milk.
valid_hypothesis: It is probably not the case that greg is a rhino, or John took the milk.
invalid_hypothesis: We believe that greg is a rhino, or John took the milk.
hypothesis_assertion: Greg is a rhino, or John took the milk.