instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Seymour is the family name of which English duke?
answer:
duke


question:
Which is the only Avril Lavigne song to have reached No.1 in the US Billboard Chart?
answer:
avril lavigne


question:
Which clothing retailer founded in 1975 is based in Arteixo in northern Spain?
answer:

retail