Man running and almost falling.
Clumsy people often stumble.
A man in a wheelchair is going down the sidewalk.
A man is swimming.
The man plays the bagpipes in a parade.
the girls are spacewalking
A bunch of kids are watching a game.
A man gains muscle mass and burns calories, while having leaf water in containers to replenish his liquids lost as sweat.
Sections 5-10 offer discussion on test methods in relation to the specific supplies.