Complex sentence: The site consists of the L. H. Hatch House, the Relic Hall, and Franklin Co-operative Mercantile Institution, which were separately listed on the National Register of Historic Places in 1973,2001, and 1991 respectively.
Split into simpler sentences: The site consists of the Hatch House, the Relic Hall, and the Franklin Cooperative Mercantile Building. It includes the L. H. Hatch House, the Relic Hall, and Franklin Co-operative Mercantile Institution, which were listed on the National Register of Historic Places in 1973,2001, and 1991 respectively.