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.

Earnhardt Ganassi Racing's driver is Jamie McMurray
Earnhardt Ganassi Racing

The 11th harmonic has just ratio 11:8
11th harmonic

The runway length of Adolfo Suárez Madrid–Barajas Airport is 4,349.

Adolfo Suárez Madrid–Barajas Airport