Q: "People on public transportation, a couple is resting on each other." Does this mean that "The person is in the public"?
A: yes

Q: "A mustached man wearing a floppy black hat displays large flowers and red, white and blue colored inflatable baseball bats." Does this mean that "A man is trying to sell flowers and baseball bats on the street"?
A: it is not possible to tell

Q: "a boy in a blue t-shirt is taking an orange bicycle over a jump in the street." Does this mean that "A boy is jumping over the street with his bicycle."?
A: yes

Q: "A little baby climbing up the ladder after someone." Does this mean that "The baby is an alien from Mars."?
A:
no