Question: Oak Hill High School serves students from Litchfield, Wales, and what town that is in Androscoggin County, Maine, with a population of 4,876, and was formerly known as Webster?
Sentence (from "Oak Hill High School (Maine)"): A part of Regional School Unit 4, this regional high school serves students from the towns of Sabattus, Litchfield, and Wales.
Relevant evidence: Yes