Okay, so at this point is “prepositional phrase” just a fancy way to say place or time?
No! Prepositional phrases can tell us about all sorts of relationships beyond place and time!
For example, on the previous page, we used the preposition for to talk about duration of a process: 'He terrorised the village for three years."
But we can use the same preposition to explain the relationship between actions, such as the reason for something happening.
For example, in this next snippet, what did Uncle Sam pay a hundred thousand dollars for?