Maintained permanent residence in PA, but lived and worked in OH from May 2018-November 2019

I was an intern in Ohio from May 2018-October 2018, and then joined AmeriCorps and served in Ohio from November 2018-November 2019. I lived in PA my whole life until moving to Ohio. I don't think I was ever a "permanent resident" of Ohio, and I moved back to PA in November after my AmeriCorps service ended. How should I answer the questions about what state I lived in in 2019 and when I became a PA resident?