Title: BeiDou Navigation Satellite System.
Question: What were the 18th and 19th satellites for the BeiDou system launched with?

Title: Post-punk.
Question: When was the post-punk revival in British and American cultures?

Title: Gymnastics.
Question: What is the floor exercise events performed on now?

Title: Houston.
Question:
How many non profit organizations are members of the Medical Center?