Input question: Imperative, perfect, pluperfect, perfect, and infinitive are types of?

Output answer: verbs

Input question: Which part of the body would be treated if the patient was suffering from lumbago?

Output answer: back

Input question: Which London Underground line has a terminus at West Ruislip?

Output answer: central

Input question: The mythological Phoenix bird originally and essentially symbolized?

Output answer:
rebirth