[QUESTION] If "The rusty lock is attached to a chain." does that mean that "The lack is attached."?
Options:
- yes
- it is not possible to tell
- no
Use of the term lack to refer to a rusty lock may not be appropriate.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A little boy jumping off a diving board in the pool to his father." is it true that "A boy jumps into the pool."?
Jumping off a diving board implies that the boy jumps into the pool.
The answer is yes.

[QUESTION] Premise: "A young boy is sitting on a stool and looking through a microscope."
Hypothesis: "The young boy is learning about mitochondrial in his biology class."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Just because a youth boy looking through a microscope doesn't mean he is learning about mitochondrial in his biology class.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A rodeo rider doing a vertical trick on a brown horse as an audience looks on." that "A man is doing a trick with a bull in front of the audience."?
Options:
- yes
- no
- it is not possible to tell
One cannot be doing a vertical tric on a brown horse and doing a trick with a bull at the same time.
The answer is no.