Q: "a child and a woman are sitting in front of a Christmas tree" Does this mean that "A child and a woman are relaxing in front of the tree at christmas."?
A: yes

Q: "An elderly couple dances to the music of a uniformed band." Does this mean that "The couple is having fun."?
A: it is not possible to tell

Q: "A young boy wears a green costume with a mask resting on top of his head while riding a toy red vehicle." Does this mean that "The young boy is eating an ice cream cone."?
A: no

Q: "A fish sellers stock is looked upon by two old men." Does this mean that "People are standing on a sidewalk next to a fisherman."?
A:
it is not possible to tell