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: Sub-Commander T'Pol:  " Terra Nova " ?
Captain Jonathan Archer: I 'm surprised you 've never heard of it .
Sub-Commander T'Pol: I 'm not familiar with the early years of Human space exploration .
Commander Charles 'Trip' Tucker III: Really ? Every school kid on Earth had to learn about the famous Vulcan expeditions .
Sub-Commander T'Pol: Name _ one _ .
Commander Charles 'Trip' Tucker III: History was never my best subject .

expeditions