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 Undead Guardian himself appeared to rock on his heels.
Example Output: Singular

Example Input: The seats are empty but I still hear the songs.
Example Output: Plural

Example Input: After all, frogs could have sought refuge in the water. "
Example Output:
Plural