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.

[EX Q]: " Ah, learning a foreign language can be so very difficult.
[EX A]: Singular

[EX Q]: Washoe's progress with ASL was rapid ; by 1971, she had a vocabulary of 160 signs, which she used in conversation.
[EX A]: Singular

[EX Q]: Her wiry sandy tail slapped Canute's face.
[EX A]:
Singular