It seems like there might be a small typo in your question. If you're asking about "prepositional," it typically refers to something related to a preposition, which is a word that shows the relationship of a noun (or pronoun) to other words in a sentence. Examples of prepositions include "in," "on," "at," "between," and "with."
If you meant something else by "prepostional," please provide more context, and I'll be happy to assist you!