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: Penny:  You just assumed my paper would be bad , so you wrote _ one _ for me ?
Leonard Hofstadter: No . I assumed it was good , then I read it .
Penny: What !
Leonard Hofstadter: No ... I mean , it was good ; there was just a few things that needed a little polishing .
Penny: wha- you changed every word !
Leonard Hofstadter: That 's not true , uh , uh . Slavery . Sixteen - nineteen . Your name on the top , that 's all you .

paper