Q: "A woman and four guys by the river talking and drinking some beer." Does this mean that "A group of people are talking at work"?
A: no

Q: "Three people dressed as clowns are walking down a busy highway." Does this mean that "Three women are dressed as clowns."?
A: it is not possible to tell

Q: "A man in a black sweatshirt walks three dogs in front of a mural." Does this mean that "The dogs are laying in the grass."?
A: no

Q: "A fluffy white dog running across the snow." Does this mean that "He is running after a ball."?
A:
it is not possible to tell