Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
--------
Question: What genus of grass is also known as kaffir corn, dhurra, Guinea corn and Indian millet?

Answer: sorghum


Question: What is the name of the actress who had become famous for her role as the possessed girl, Regan, in the 1973 film The Exorcist?

Answer: linda blair


Question: The album If You Wait reached number two last year for which band Their name sounds like it could be the name of a school in the capital.?

Answer:
london grammar