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: Lt. Cmdr. Harmon 'Harm' Rabb, Jr.:  I keep forgetting I do n't know you .
Maj. Sarah 'Mac' MacKenzie: Deja vu again ?
Lt. Cmdr. Harmon 'Harm' Rabb, Jr.: Only whenever I see your face , or I hear you talk . I would n't know about your smile ; I haven't seen _ one _ yet .
Maj. Sarah 'Mac' MacKenzie: There 's not much to smile about .
Lt. Cmdr. Harmon 'Harm' Rabb, Jr.: I guess not .
Maj. Sarah 'Mac' MacKenzie: Sounds like I have a twin out there .
Lt. Cmdr. Harmon 'Harm' Rabb, Jr.: Not anymore .

smile