context: It is probably the case that John discarded the milk. It is impossible that Sandra took the football. There is a better than even chance that Brian is a rhino. Chances are about even that if Sandra took the football, and Brian is a rhino, then Greg is a frog. There is almost no chance that if John discarded the milk, and Brian is a rhino, then Emily is a wolf. We believe that if Sandra took the football, and John discarded the milk, then Lily is a swan.
hypothesis: It is probably the case that greg is a frog, and Lily is a swan.
valid_hypothesis: It is impossible that greg is a frog, and Lily is a swan.
invalid_hypothesis: It is probably the case that greg is a frog, and Lily is a swan.
hypothesis_assertion: Greg is a frog, and Lily is a swan.