[QUESTION] Given the sentence "A young girl riding a surfboard." is it true that "There are no people surfing today."?
Either the girl is riding or there are no people surfing.
The answer is no.

[QUESTION] Given the sentence "A woman siting on a computer chair while looking at some documents." is it true that "A woman siting on a  chair while looking at some documents."?
The woman is sitting on a chair because she is sitting on a computer chair.
The answer is yes.

[QUESTION] Premise: "A young girl in jeans sits at the top of a red and yellow slide."
Hypothesis: "A child is on play equipment."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A young girl is a child and a slide is play equipment.
The answer is yes.

[QUESTION] Premise: "Two cowboys on horseback in a rodeo."
Hypothesis: "Two people are riding horses."
Do we know that the hypothesis entailed by the premise?
The two people riding horses or on horseback are cowboys in a rodeo.
The answer is yes.