title: Regular expression to match word pairs joined with colons
body: <p>I don't know regular expression at all. Can anybody help me with one very simple regular expression which is, </p>
  
  <p>extracting '<strong>word:word</strong>' from a sentence. e.g "Java Tutorial <strong>Format:Pdf</strong> With <strong>Location:Tokyo</strong> Javascript"? </p>
  
  <ul>
  <li>Little modification:
  the first 'word' is from a list but second is anything. "word1 in [ABC, FGR, HTY]"</li>
  <li>guys situation demands a little more
  modification.
  The matching form can be "word11:word12 word13 .. " till the next "word21: ... " .</li>
  </ul>
  
  <p>things are becoming complex with sec.....i have to learn reg ex :( </p>
  
  <p>thanks in advance.</p>