Q: "A man crouching and holding a camera." Does this mean that "A human crouching."?
A: yes

Q: "The man is wearing a red outfit and red mask stands in front of another man in urban camouflage." Does this mean that "In front of a man dressed in camouflage, there stands a masked man with red clothes on."?
A: yes

Q: "All the people on the boat is taking in the excellent view." Does this mean that "Some people are on a boat."?
A: yes

Q: "A woman wearing a pullover with an American flag patch bends over an elderly person who is lying on the ground." Does this mean that "a lady in a sweater leans over an older person"?
A:
yes