Q: "Person with no hair and makeup sits next to others in front of portable toilets." Does this mean that "The people all wear make-up and beehive hair dos."?
A: no

Q: "Many men on the back of a pick up truck going down a road." Does this mean that "A truck full of workers on their way home."?
A: it is not possible to tell

Q: "Two people in motorcycle helmets are posing for a picture." Does this mean that "Some humans posing."?
A: yes

Q: "A girl is sitting on a rock next to a waterfall." Does this mean that "The girl is near a waterfall."?
A:
yes