Problem: Does "During the Baroque era, keyboard music played on the harpsichord and pipe organ became increasingly popular, and the violin family of stringed instruments took the form generally seen today." answer the question "What became more common during the Baroque era?"

A: no

Problem: Does "The world's oldest monographic music competition, the International Chopin Piano Competition, founded in 1927, is held every five years in Warsaw." answer the question "When was the International Chopin Piano Competition established?"

A: yes

Problem: Does "In turn, Gaddafi played up his commercial relationship with the Soviets, visiting Moscow again in April 1981 and 1985, and threatening to join the Warsaw Pact." answer the question "In what years did Gaddafi visit the Soviet Union?"

A:
yes