Parts of Speech - Prepositions

a word used with a noun or pronoun to create a prepositional phrase.

For example: "in the house", "under the water", "by the canyon"

What is the relationship between Ms. Thompson and the school?

She is not under the school, by the school, or next to the school. She is in the school.

People used to say you could never end a sentence with a preposition, however, that it not always the case. If you can change the order of the words, great! Sometimes it can just make the sentence unclear.

For example: A senator is someone to whom most people upwardly look vs. A senator is someone most people look up to.

Is there another way we could word this to not have a preposition at the end?