Q: "A puppy is gnawing on a plant branch in an uncut grassy area with wood and a barrel nearby." Does this mean that "A puppy is eating a plant branch."?
A: yes

Q: "a man is climbing a cliff with his feet on a brown metal plate" Does this mean that "The man is climbing up a cliff."?
A: yes

Q: "A man is doing a trick with a bike." Does this mean that "A man is showing off while riding his bike."?
A: it is not possible to tell

Q: "Two men are toasting a cup of beer together, while another watches." Does this mean that "Two men are in a bar."?
A:
it is not possible to tell