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: " Some kind of criminal, I guess, " scoffed the sergeant.
Example Output: Singular

Example Input: The courtyard is shaking so badly that for a second I'm not sure I haven't caused another earthquake.
Example Output: Singular

Example Input: The singer talked to the keyboard player momentarily, his back to the crowd ( how rude thought Theo ).
Example Output:
Singular