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: Louise:  So you want to be real artists . It 's okay . I can sell that angle . But you two have to go all the way . One of you has to lose an ear !
Tina: I need both ears to hold up my glasses .
Louise: What about you ? What 's your excuse ?
Gene: Do n't have _ one _ . Have at it !

excuse