context: It is certain that Mary is in the garden. It is highly likely that Emily is a cat. It is improbable that Sandra took the apple.
hypothesis: It is improbable that sandra took the apple, and Mary is in the garden.
valid_hypothesis: It is improbable that sandra took the apple, and Mary is in the garden.
invalid_hypothesis: It is certain that sandra took the apple, and Mary is in the garden.
hypothesis_assertion: Sandra took the apple, and Mary is in the garden.