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 man-made chemical polonium leaks from the engines by tiny droplets.
Example Output: Singular

Example Input: But her efforts seemed futile.
Example Output: Plural

Example Input: Maris leaned her head on his chest, rubbing her cheek against the hairy roughness as an almost painful tenderness filled her.
Example Output:
Plural