title: LUIS - How to handle untterances
body: <p>I am creating a <code>LUIS</code> app for extracting the end start date from a sentence.
  The utterances I might get as input from users is as follows:</p>
  
  <p>1) start date is 12/2/2020 and end date is 1/3/2030</p>
  
  <p>2) starts on 12/3/2020 and lasts for three years</p>
  
  <p>For the first I have handled. I am stuck on how to handle the second case</p>