Q: "Boy with sports jersey getting teeth examined." Does this mean that "The boy is in a dentist examining chair."?
A: yes

Q: "People walking in front of a billboard." Does this mean that "People are walking outdoors."?
A: yes

Q: "two men are riding trail bikes and are jumping over a hill in a area that is wooded." Does this mean that "two women walking"?
A: no

Q: "Men playing with a red ring out in the field." Does this mean that "They are playing a contact activity."?
A:
it is not possible to tell