context: It is impossible that Mary went to the garden. There is almost no chance that John left the milk. There is little chance that Sandra took the football.
hypothesis: It is certain that sandra took the football, and John left the milk.
valid_hypothesis: It is impossible that sandra took the football, and John left the milk.
invalid_hypothesis: It is certain that sandra took the football, and John left the milk.
hypothesis_assertion: Sandra took the football, and John left the milk.