context: A welder is working outside by some concrete ruble
hypothesis: We believe that the worker is fixing the concrete structure by welding it back together after the accident
valid_hypothesis: There is almost no chance that the worker is fixing the concrete structure by welding it back together after the accident
invalid_hypothesis: We believe that the worker is fixing the concrete structure by welding it back together after the accident
hypothesis_assertion: The worker is fixing the concrete structure by welding it back together after the accident