instruction:
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:
The American television series 'The Lone Gunmen', which centred on a group of investigators who ran a conspiracy theory magazine, was a spin-off of which other succesful series?
answer:
the x-files


question:
What is the name of the fictional forensic psychologist in the series of novels by US author James Patterson?
answer:
alex cross


question:
The theme tune of what TV show was Frank Sinatra's version of Love and Marriage?
answer:

married... with children