question: Where were the pieces found ?
answer: The two compositions -- a concerto in G and a prelude in G -- have long been in the files at the International Mozarteum Foundation in Salzburg , Austria ,
turker_answer: The two compositions -- a concerto in G and a prelude in G -- are found at the International Mozarteum Foundation in Salzburg , Austria .
rule-based: The pieces were found in the two compositions -- a concerto in G and a prelude in G -- have long been in the files at the International Mozarteum Foundation in Salzburg , Austria .