context: There is little chance that Daniel took the football. There is little chance that John went to the garden. It is impossible that Mary dropped the milk. It is probably the case that if John went to the garden, and Mary dropped the milk, then Greg is a rhino. Chances are slight that if Daniel took the football, and John went to the garden, then Brian is green. Chances are about even that if either Daniel took the football, or John went to the garden, then Julius is white.
hypothesis: It is probably the case that greg is a rhino, and John went to the garden.
valid_hypothesis: It is impossible that greg is a rhino, and John went to the garden.
invalid_hypothesis: It is probably the case that greg is a rhino, and John went to the garden.
hypothesis_assertion: Greg is a rhino, and John went to the garden.