Title: Elevator.
Question: How were most elevators built before 1939 powered?

Title: Korean War.
Question: What resources did the US devote to South Korea after the Security Council approved engaging in an armed conflict?

Title: Sichuan.
Question: What is one of the largest minorities in Chengdu?

Title: Hindu philosophy.
Question:
What are Buddhism and Jainism regarded as in relation to religion and philosophy?