Problem: Does "They were made between 965 and 970 by local craftsmen, supervised by a master mosaicist from Constantinople, who was sent by the Byzantine Emperor to the Umayyad Caliph of Spain." answer the question "When were the mosaics in the Great Mosque in Corduba created?"

A: yes

Problem: Does "The New York City Public Schools system, managed by the New York City Department of Education, is the largest public school system in the United States, serving about 1.1 million students in more than 1,700 separate primary and secondary schools." answer the question "How many students are in New York City public schools?"

A: yes

Problem: Does "In 1984, each league had two divisions, East and West." answer the question "In what year did the league have two divisions?"

A:
yes