[Oh, well] (4)
There are a few possibilities for this:
such is life
(Other definitions for alas that I've seen before include "Unhappily" , "By bad luck" , "Cry of woe" , "What a shame!" , "Antipodean island state" .)
(Other definitions for sigh that I've seen before include "Exhale wearily" , "resigned response" , "Audible breath expressing weariness" , "Sad exhalation" , "Exhale loudly" .)