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: Erin Strauss:  Agent Prentiss .
Emily Prentiss: Ma'am .
Erin Strauss: We understand that Agent Hotchner managed to separate himself from the rest of the team .
Emily Prentiss: He did n't " manage " to do that . When Marshall Kassmeyer was in the ambulance ...
Erin Strauss: ... Agent Hotchner volunteered to ride along ...
Emily Prentiss: ... to get answers before he lost consciousness .
Erin Strauss: Why did n't you go with him ?
Emily Prentiss: It did n't seem necessary .
Erin Strauss: Did he tell you that ?
Emily Prentiss: Is that what you 're looking for ? A way to blame this on him ? What good could that possibly do ?
Erin Strauss: Agent Hotchner was looking for an opportunity to separate himself from the team , and he found _ one _ .
Emily Prentiss: That is n't the truth !
Erin Strauss: He was desperate and he did n't want someone with a clear head to stop him .
Emily Prentiss: Is there a question in there somewhere ?

opportunity