title: C# .net Regular Expression to match text delimited by spaces and colon
body: <p>I have three sentences as follows:</p>
  
  <pre>
  000000-00000 Date First text: something1 
  200000-00000 Time Second text: something2
  234222-34332 struc Third text: somthing3
  </pre>
  
  <p>How do I write a regex to match between (Date|Time|struc) and the colon (:), not including (Date|Time|struc)?.</p>