instruction:
This task is about identifying the subject of a given sentence. The subject of a sentence is the person, place, or thing that is performing the action of the sentence. The subject represents what or whom the sentence is about. Each sentence in this task is guaranteed to contain a single subject. The input is a sentence and the output is the identified subject of that sentence.
question:
Poaceae belongs to the order of Commelinids.
answer:
Poaceae


question:
Earnhardt Ganassi Racing's driver is Jamie McMurray
answer:
Earnhardt Ganassi Racing


question:
The college where Keith Hartwig played is in Arizona.
answer:

Keith Hartwig