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.
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Question: the english cocker spaniel is a breed of dog.

Answer: english cocker spaniel


Question: the tornado outbreak sequence of june 1966 was a series of tornado outbreaks which happened between june 2 and june 12.

Answer: tornado outbreak sequence of june 1966


Question: francis warren nicholls, jr. (january 18, 1955 – march 31, 2014), better known by his stage name frankie knuckles, was an american dj, record producer, and remixer.

Answer:
frankie knuckles