Definition: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Input: Aunt Clara:  Would n't you like to see my doorknob collection ?
Phyllis Stephens: I beg your pardon ?
Samantha Stephens: Aunt Clara collects doorknobs .
Aunt Clara: I have _ three _ thousand .

doorknobs