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.

boyz ii men is an american boy band from philadelphia, pennsylvania.
boyz ii men

the 1939–40 nhl season was the 23rd season for the national hockey league.
1939–40 nhl season

merrill cook (born may 6, 1946 in philadelphia, pennsylvania) is an american businessman and politician of the republican party.

merrill cook