context: Two men, each wearing a white tee-shirt and headphones make adjustments to a machine while shaded by a dark umbrella-like contraption.
hypothesis: Chances are slight that technicians servicing machinery under hastily constructed shade.
valid_hypothesis: There is a better than even chance that technicians servicing machinery under hastily constructed shade.
invalid_hypothesis: Chances are slight that technicians servicing machinery under hastily constructed shade.
hypothesis_assertion: Technicians servicing machinery under hastily constructed shade.