No. Both are nouns, and school may be used as an adjunct or adjective (school days). Neither can be a preposition.
The prepositions in the sentence are "outside" and "after".
Outside, because,to, after are all prepositions.
The two prepositions in the sentence are "outside" and "after".
outside,after.
an inventor
He, she, and it are pronouns, not prepositions.
His mum is a school Princibal
There are three main types of prepositions: time prepositions (e.g. at, on, in), place prepositions (e.g. above, below, between), and direction prepositions (e.g. to, from, towards).
she went to davallian primary school with my mum
just ask her?
use prepositions and live better
Jack Hunt School in Peterborough where his mum lives.