title: How to build a propper H2O word2vec training_frame
body: <p>How do I build a H2O word2vec training_frame that distinguishes between different document/sentences etc.?</p>
  
  <p>As far as I can read from the very limited documentation I have found, you simply supply one long list of words? Such as</p>
  
  <pre><code>'This' 'is' 'the' 'first' 'This' 'is' 'number' 'two'
  </code></pre>
  
  <p>However it would make sense to be able to distinguish – ideally something like this:</p>
  
  <pre><code>Name   | ID
  This   | 1
  is     | 1
  the    | 1
  first  | 1
  This   | 2
  is     | 2
  number | 2
  two    | 2
  </code></pre>
  
  <p>Is that possible?</p>