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 laces loosened and spread under his fingers.
Example Output: Plural

Example Input: " What's madness is that with a push of a button, they can knock us all out within seconds. "
Example Output: Singular

Example Input: His technique was one of confident expertise.
Example Output:
Singular