[QUESTION] If "A woman wearing a black dress and black tights is walking down a sidewalk." does that mean that "A man is dancing."?
Options:
- yes
- it is not possible to tell
- no
A woman cannot also be a man just like one cannot be both walking and dancing at the same time.
The answer is no.

Q: Given the sentence "A boy standing with one leg in water and one leg held up over the surface." is it true that "A boy in a chair."?
A: One cannot be in a chair and standing at the same time.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "A man in a blue shirt is sitting in a crowded setting beside a woman in a red dress that is looking out the window as they are surrounded by other people."
Hypothesis: "A dog with a tie on is sitting next to a cat."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: One refers to a man. the other refers to a dog.
The answer is no.

[QUESTION] Given the sentence "A man trains a dog to attack." is it true that "A person is teaching an animal."?
A man is a person. Trains is the same as teaching. A dog is an animal.
The answer is yes.

Q: Can we conclude from "Two black men dressed in military gear." that "A couple of people wait for directions."?
Options:
- yes
- no
- it is not possible to tell
A: There ca be men and woman in a group on people.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man in white studies at a white table with a white chair in an empty room."
Hypothesis: "Every person who is shown is watching tv."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
If every person is shown then the room cannot be empty.
The answer is no.