QUESTION: Premise: "People are eating in a cafeteria with a wood beam and glass ceiling."
Hypothesis: "People are sleeping in a cafeteria with a glass beam and wood ceiling."
Do we know that the hypothesis entailed by the premise?

SOLUTION: Let's solve this gradually. If the people are sleeping they will never be eating in a cafeteria.
Answer is no.

QUESTION: Given the sentence "Bicyclists and pedicabs go by a large white modern building." is it true that "The riders are racing."?

SOLUTION: Let's solve this gradually. Just because bicyclists and pedicabs pass a large white modern building doesn't mean they are racing.
Answer is it is not possible to tell.

QUESTION: Given the sentence "A snowboarder glides down a stair rail." is it true that "A sad snowboarder glides down a stair rail."?

SOLUTION: Let's solve this gradually. A snowboarder who glides down a rail doesn't particularly suggest sad snowboarder.
Answer is it is not possible to tell.

QUESTION: Given the sentence "Asian man sweeping the walkway." is it true that "A man is cleaning."?

SOLUTION:
Let's solve this gradually. A man referred to is Asian man and Asian man sweeping the walkway means man cleaning.
Answer is yes.