context: Three people in t-shirt, yellow helmets and harnesses begin to climb ladder.
hypothesis: There is little chance that three people climb a ladder to rescue soemone.
valid_hypothesis: There is little chance that three people climb a ladder to rescue soemone.
invalid_hypothesis: There is a very good chance that three people climb a ladder to rescue soemone.
hypothesis_assertion: Three people climb a ladder to rescue soemone.