Q: "A man, woman, and young girl give a demonstration for several kids." Does this mean that "A teacher giving a lecture."?
A: no

Q: "A woman carrying a bag standing next to a man waiting to cross the street." Does this mean that "A woman is carrying her bag."?
A: yes

Q: "Women join arms and dance in a circle while men watch and sing and the background." Does this mean that "Women join arms and dance in a circle."?
A: yes

Q: "Several people walk up a staircase." Does this mean that "The people are going upstairs."?
A:
yes