instruction:
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.
question:
But her efforts seemed futile.
answer:
Plural

question:
Bare floors, blank walls, all painted the same shade of off-white.
answer:
Plural

question:
Flowers grew again and the vivid colours were just as beautiful as those in the courtyard.
answer:
Plural