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.

Input: Consider Input: Her aura, which moments before was clear and bright, was suddenly cloudy with a burst of mustard color.

Output: Singular

Input: Consider Input: Plans, ideas, were racing through his head.

Output: Plural

Input: Consider Input: Soon afterward a known landmark, the distinctive outline of the Black Mesa, began to rise over the horizon ahead of them.
Output: Singular