context: It is improbable that John left the football. It is probable that Mary put down the apple. It is probably the case that Lily is green. We doubt that if John left the football, and Lily is green, then Julius is a frog. Chances are about even that if either Mary put down the apple, or John left the football, then Daniel is in the garden. There is little chance that if Mary put down the apple, and Lily is green, then Greg is a swan.
hypothesis: There is almost no chance that daniel is in the garden, and Greg is a swan.
valid_hypothesis: There is almost no chance that daniel is in the garden, and Greg is a swan.
invalid_hypothesis: It is highly likely that daniel is in the garden, and Greg is a swan.
hypothesis_assertion: Daniel is in the garden, and Greg is a swan.