In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.

Example Input: His thrusts strengthened as the animal in him gradually broke free of its cage.
Example Output: Plural

Example Input: The shadowy grotto had disappeared.
Example Output: Singular

Example Input: Far off, in his den under the barn, the Death of Rats relaxed his determined grip on a beam.
Example Output:
Singular