Q: "a group of people are enjoying their time on a carnival ride." Does this mean that "Humans enjoying."?
A: yes

Q: "A man plays a saxophone in a public area." Does this mean that "A sad man plays a saxophone in a public area."?
A: it is not possible to tell

Q: "A man wearing a feathered hat is riding a gray horse." Does this mean that "A man in a hat rides a horse."?
A: yes

Q: "There is a man in a brown jacket who is sitting on a rock and he is near a bunch of four wheelers." Does this mean that "All-terrain vehicles are outdoors."?
A:
yes