title: Vim formula to leave only two first words in each line
body: <p>How to leave only two first words (remove all the rest) in each line in Vim? </p>
  
  <p>E.g.</p>
  
  <pre><code>AA  AA  subst:pl:acc:m3+subst:pl:acc:n2
  aa  ad acta brev:npun
  </code></pre>
  
  <p>into </p>
  
  <pre><code>AA  AA
  aa  ad
  </code></pre>