context: It is certain that Sandra dropped the milk. It is impossible that John put down the milk. There is almost no chance that Greg is green.
hypothesis: There is almost no chance that greg is green, or Sandra dropped the milk.
valid_hypothesis: It is certain that greg is green, or Sandra dropped the milk.
invalid_hypothesis: There is almost no chance that greg is green, or Sandra dropped the milk.
hypothesis_assertion: Greg is green, or Sandra dropped the milk.