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: Ms. Morris:  Ladies . Why are n't you exercising with the rest of the class ?
Jane Lane: We are exercising .
Daria Morgendorffer: We 're exercising our right to abstain from cheerleader practice .
Ms. Morris: That 's not cheerleading , it 's agility . Jane Lane , you 're just like your sisters , are n't you ?
Jane Lane: We share certain chromosome pairs . Beyond that , I 'm not supposed to say .
Ms. Morris: You know what I mean . Ca n't be part of a group . Always have to be different . Your sister Penny never wanted to participate , either . I taught her a thing or _ two _ about the American competitive spirit .
Jane Lane: You sure did . That 's why she 's spent the last ten years out of the country .

thing