QUESTION: Given the sentence "A lady walks behind a wheelchair while another lady walks behind her." can we conclude that "The lady walked behind the wheelchair."?
Options:
- yes
- it is not possible to tell
- no

SOLUTION: Let's solve this gradually. Lady walks behind another lady who is on the wheelchair implies that she walked behind the wheelchair.
Answer is yes.

QUESTION: Can we conclude from "An african american man stands in front of a heavily graffited brick wall." that "A guy is next to grafitti."?
Options:
- yes
- no
- it is not possible to tell

SOLUTION: Let's solve this gradually. African American man is a guy and next to graffiti is same as in front of graffited wall.
Answer is yes.

QUESTION: Test for natural language inference.
Premise: "A man sits on a folding chair outside while listening to music on his ipod."
Hypothesis: "The man stands on the sidewalk listening to the marching band that is passing by."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

SOLUTION: Let's solve this gradually. One can not be sitting on a folding char while he stands on the sidewalk. Listening to iPod is different than listening a live marching band pass by.
Answer is no.

QUESTION: Given the sentence "Young cyclists prepare for a race." is it true that "Young cyclist are racing for a charity."?

SOLUTION:
Let's solve this gradually. You can prepare for races that are not charities or a charity.
Answer is it is not possible to tell.