Q: "Hard hatted construction workers wait to board a lift." Does this mean that "Tall humans waiting."?
A: it is not possible to tell

Q: "A man is using a tool on these long pieces of wood." Does this mean that "A man is using a tool."?
A: yes

Q: "Boy in red vest and blue and white trunks on wakeboard." Does this mean that "The boy is having fun."?
A: it is not possible to tell

Q: "A man hits a volleyball on a beach volleyball court while spectators look on." Does this mean that "A really tall man."?
A:
it is not possible to tell