context: It is probably the case that Bill moved to the garden. Chances are about even that John put down the apple. There is a very good chance that Emily is a mouse. We doubt that if John put down the apple, or Emily is a mouse, then Greg is a swan. Chances are about even that if either Bill moved to the garden, or John put down the apple, then Sandra got the football. There is a very good chance that if John put down the apple, and Emily is a mouse, then Julius is green.
hypothesis: It is improbable that julius is green, or Emily is a mouse.
valid_hypothesis: There is a very good chance that julius is green, or Emily is a mouse.
invalid_hypothesis: It is improbable that julius is green, or Emily is a mouse.
hypothesis_assertion: Julius is green, or Emily is a mouse.