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.

[Q]: Still, there was a certain subtlety of expression that Earth models lacked'.
[A]: Singular


[Q]: Her tutor never even knew the difference.
[A]: Singular


[Q]: Stop the staring and come on in, " Rose good-naturedly scolded him.
[A]:
Singular