Question: What county do both Maplewood Park, Ohio and Youngstown, Ohio have in common?
Sentence (from "Youngstown, Ohio"): According to the 2010 Census, Youngstown had a city proper population of 66,982, while the Youngstown-Warren-Boardman, OH-PA Metropolitan Statistical Area it anchors contained 565,773 people in Mahoning and Trumbull counties in Ohio, and Mercer County in Pennsylvania.
Relevant evidence: No