Given the task definition and input, reply with output. 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.

Ryan Sanders: As I live and breathe , Kelly Taylor !
Kelly Taylor: Joy , these are Steve 's brothers ; Ryan and Austin . My sister Joy .
Austin Sanders: Nice to meet you .
Joy Taylor: Hi .
Ryan Sanders: I never knew you had a sister .
Kelly Taylor: Yep .
Ryan Sanders: Especially _ one _ so pretty .
Austin Sanders: You 're sweet .
sister