Q: "Two men digging at a construction sight." Does this mean that "Some people are moving earth with shovels."?
A: yes

Q: "A rock band plays on a Zune stage while many people watch." Does this mean that "A rock band playing hard music on stage."?
A: it is not possible to tell

Q: "Four casually dressed guys jumping down a stairway outdoors with a stone wall behind them." Does this mean that "Five women crawl down stairs with a stone wall behind them."?
A: no

Q: "A man dressed in martial arts clothing is breaking a piece of wood with his foot as other students watch." Does this mean that "A human being wearing clothes is moving."?
A:
yes