instruction:
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.
question:
Esfandiar Mashaei:  We have 2 or 3 centrifuges , they say should n't have these _ three _ , but another day we have 2300 and they say it 's enough , no problem . what 's happened ? Their nature changed ? No , they 're submitted .
answer:
centrifuges


question:
Anna:  For you I think love must be something ...
Robert Kuhlenkampf: Yes ?
Anna: Something ...
Robert Kuhlenkampf: Intangible . Take off your dress .
Anna: Robert !
Robert Kuhlenkampf: Take it off ! Night envelops us in her veil of stars . She 's spread the Milky Way at our feet . A thousand stars sparkle before us . Take it off !
Anna: But I 'm cold .
Robert Kuhlenkampf: Night reveals _ 20 _ , 30 , 50 suns hidden by the light of day . Imagine we 're in the Indies , in a mysterious palace . Take off your slip . The nights are hot . The humid night air surrounds us . Take off your slip .
Anna: Do you love me ?
answer:
suns


question:
Jackson Stewart:  Ok , see , that 's easy to say when you do n't actually * have * a little sister
Miley Stewart: It 's not my fault , I always wanted _ one _
Jackson Stewart: Yeah , I always wanted a puppy but they brought you home insted
answer:

sister