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: The Cadogan vamps knew me as Sentinel and Lindsey as guard.
Example Output: Plural

Example Input: " This fellow went on.
Example Output: Singular

Example Input: A creak sounded overhead.
Example Output:
Singular