Generate a question with a factual answer.
Generated: What was the second time period that a significant change began to happen in Cubism?

Generate a question with a factual answer.
Generated: Along with being carved, how were altarpieces often decorated in this period?

Generate a question with a factual answer.
Generated: What is a developing field of time related study?

Generate a question with a factual answer.
Generated: 8th Street between Avenue A and Third Avenue is called what?