TASK DEFINITION: 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.
PROBLEM: The International Covenant on Economic, Social and Cultural Rights was signed in 1977.

SOLUTION: International Covenant on Economic, Social and Cultural Rights

PROBLEM: Germany got Rank 9 in Cycling at the 1996 Summer Olympics – Men's team pursuit.

SOLUTION: Germany

PROBLEM: The 7P/Pons-Winnecke comet was discovered by Pons & Winnecke.

SOLUTION:
7P/Pons-Winnecke