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.

Ex Input:
Who wrote the novels Enigma and The Ghost?

Ex Output:
robert harris


Ex Input:
Which football club did Kenny Dalglish leave in 1977 to join Liverpool?

Ex Output:
celtic


Ex Input:
On which river do the cities of Dresden and Hamburg stand?

Ex Output:

elbe