Question and answer: Q: Premise: "A man in a white t-shirt wearing a silver helmet rides his yellow motorbike on a busy street."
Based on this premise, can we conclude that the hypothesis "A man in black is not wearing a helmet and is riding in a car." is true?
Options:
- yes
- it is not possible to tell
- no
A: no
Explanation: He can be either be in white or black. He can either be wearing or not wearing a helmet. He can either ride in a motorbike or car.

Question and answer: Q: Premise: "The camera catches some movement as a man walks in front of the alpha dental group building."
Hypothesis: "A man walks in front of a building."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: yes
Explanation: A man walks in front of a building refers to man walking in front of the Alpha Dental Group building.

Question and answer: Q: Given the sentence "A man dressed in protective gear walking along a stream with another man close behind him." can we conclude that "A man wears protective gear because of a biohazard nearby."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Explanation:
It can't be automatically inferred that the man is wearing protective gear because of a biohazard.