Q: "A group of people walking around, a man holding up a baby up over his head and other people walking down some stairs." Does this mean that "The man has a mustache."?
A: it is not possible to tell

Q: "A man in a construction supply area, wearing blue jeans and bluish gray t-shirt, caries a bundle of metal on his shoulder" Does this mean that "A construction worker is working while wearing blue."?
A: yes

Q: "A man looking through a telescope with his son." Does this mean that "The man and his son are in the backyard"?
A: it is not possible to tell

Q: "A family is having a dinner party in and open, white-walled kitchen." Does this mean that "The family is spending time togethor."?
A:
yes