Q: Premise: "A construction worker works on a metal structure."
Hypothesis: "There is a construction worker building stuff."
Do we know that the hypothesis entailed by the premise?
A: A worker specified as being in construction is ordinarily involved in 'building stuff'; one who 'works on a structure' is even more likely to be 'building stuff'; 'a construction worker' establishes that there is a construction worker.
The answer is yes.

Q: Test for natural language inference.
Premise: "A child wearing shorts is moving a window screen."
Hypothesis: "There is a child in long pants moving a watering can."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: One cannot wear long pants and shorts at the same time.
The answer is no.

Q: Given the sentence "Two people are wading in the water as the sun cascades off of the water." can we conclude that "Two people are walking through water as the sun reflects on the water outside."?
Options:
- yes
- it is not possible to tell
- no
A: Walking through water is the same as wading in the water.
The answer is yes.

Q: Given the sentence "A long-haired lady performs in an equestrian event by the sea side." can we conclude that "The lady is singing."?
Options:
- yes
- it is not possible to tell
- no
A:
One can't automatically infer that the lady is singing just because she performs.
The answer is it is not possible to tell.