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: Dr. Temperance 'Bones' Brennan:  I thought I 'd start my speech with a joke
Dr. Temperance 'Bones' Brennan: Right
Dr. Temperance 'Bones' Brennan: Erwin Schrödinger gets pulled over by the police for speeding . The officer says : " What 's in the trunk ? " Schrödinger said : " A cat " . The officer said : " Well , I need to see " , so the police officer opens the trunk , he says : " This cat is dead . " Schrödinger says : " Well , it is now " .
Special Agent Seeley Booth: Give me heads up when the joke 's coming
Dr. Temperance 'Bones' Brennan: Well , that was a joke , Booth . Well , it 's based on Schrödinger 's famous thought experiment
Special Agent Seeley Booth: Ah , you know what , I usually judge a joke by how funny it is . And there 's no yuks on that _ one _
Dr. Temperance 'Bones' Brennan: Great . Now my speech for the forensic convention has no beginning
Special Agent Seeley Booth: Try this for a joke . You hear about the , uh , restaurant on the moon ? Great food , but no atmosphere
Dr. Temperance 'Bones' Brennan: That 's not a science joke
Special Agent Seeley Booth: Yes it is . It 's got the word " moon " , it 's got the word " atmosphere " in it . It 's very sciencery

joke