Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

summerslam (2001) was a professional wrestling pay-per-view show made by world wrestling federation (wwf).
summerslam (2001)

roger mudd (born february 9, 1928) is an american broadcast journalist.
roger mudd

nickelodeon is a worldwide cable television network.

nickelodeon