Problem: What type of thing is the question "What was the first TV set to include a remote control ?" asking about?
Answer: entity

Problem: What type of thing is the question "What is the web address at which I can find the e-mail address of a member of the US House of Representatives ?" asking about?
Answer: location

Problem: What type of thing is the question "Who is the Greek God of the Sea ?" asking about?
Answer:
human