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 rats do not know the warrior has arrived.
Example Output: Plural

Example Input: The senator was a skeptic, always has been.
Example Output: Singular

Example Input: Only an idiot can believe in it !
Example Output:
Singular