TASK DEFINITION: In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: She remembered long corridors stretching out to infinity and a huge grandfather clock whose ticks had sounded like the beats of a dying heart.

SOLUTION: Plural

PROBLEM: Catching up her hand, he gave it a squeeze.

SOLUTION: Singular

PROBLEM: Halve the proportion of people who suffer from hunger by 2015.

SOLUTION:
Singular