context: Two homeless men dressed in gray sit against a wall with a sleeping dog on a purple leash.
hypothesis: It is improbable that two friends sit against a wall with their pet dog.
valid_hypothesis: It is likely that two friends sit against a wall with their pet dog.
invalid_hypothesis: It is improbable that two friends sit against a wall with their pet dog.
hypothesis_assertion: Two friends sit against a wall with their pet dog.