instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Ageusia is the loss of which sense?
answer:
ageusia


question:
What is the cathedral church of Rome?
answer:
cathedral


question:
Who was Commander-in-Chief of American ground forces in planning the invasion of France in 1944 and Commander of the US 1st Army on D Day?
answer:

normandy landings