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.

Q: the sunflower ("helianthus annuus") is a living annual plant in the family asteraceae, with a large flower head ("capitulum").

A: sunflower
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Q: william frederick "buffalo bill" cody (february 26, 1846 – january 10, 1917) was an american soldier, bison hunter and showman.

A: buffalo bill
****
Q: cbs morning news is an early morning television program on cbs.

A:
cbs morning news
****