Q: "A man riding a unicycle down a set of stairs." Does this mean that "The person is in a circus act."?
A: it is not possible to tell

Q: "Five small children are riding a ride that lifts them up and brings them down." Does this mean that "Children sitting in a classroom."?
A: no

Q: "The night sky in the desert." Does this mean that "The day sky in the desert"?
A: no

Q: "A man that appears to be running in a marathon gives us 2 thumbs up." Does this mean that "A tired guy walks along the college track."?
A:
no