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: Captain John Sheridan:  In breaking away from Earth , we have begun a difficult and uncertain journey , and none of us can see its end , but our cause remains a just _ one _ . That truth honours and sanctifies our fallen comrades who have made the ultimate sacrifice so that we might carry on the work that is ahead of us . We are gathered here today to honour their memory and their names .

cause