title: Get first word of all strings in lists
body: <p>I have a CSV file which I'm reading in like below. I need to get the first word of all the strings. I know how to get first letter but I'm not sure how I can get words. </p>
  
  <pre><code>['diffuse systemic sclerosis', 'back', 'public on july 15 2008']
  ['diffuse systemic sclerosis', 'forearm', 'public on may 9 2014']
  </code></pre>
  
  <p>I want my output to be </p>
  
  <pre><code>diffuse
  back
  public
  forearm
  </code></pre>