Given the sentence "An onlooker sits on the shore of a pool overlooked by massive waterfalls." is it true that "An onlooker is admiring the view of the scenery on vacation."?
Step-by-step reasoning process below:
it is not possible to tell
Just because an onlooker site on the shore of a pool doesn't mean they are admiring anything.

The onlooker might not be on vacation.

.

Therefore, the answer is it is not possible to tell