context: The two people are on the end of the dock with a boat behind them, and they are surrounded by water.
hypothesis: It is probably the case that a couple on the dock getting ready to board their boat.
valid_hypothesis: It is probably the case that a couple on the dock getting ready to board their boat.
invalid_hypothesis: Chances are slight that a couple on the dock getting ready to board their boat.
hypothesis_assertion: A couple on the dock getting ready to board their boat.