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.

With swp weight class the Silver Shadow Stakes was held.
Silver Shadow Stakes

The Molecular Target of Omega-3-Fatty Acid Ethyl Esters is Triglyceride -Synthesizing Enzymes
Omega-3-Fatty Acid Ethyl Esters

Arrabbiata sauce originates from the region of Rome.

Arrabbiata sauce