title: Question on regex not performing as expected
body: <p>I am trying to change the suffixes of companies such that they are all in a common pattern such as Limited, Limiteed all to LTD.</p>
  <p>Here is my code:</p>
  <pre><code>re.sub(r&quot;\s+?(CORPORATION|CORPORATE|CORPORATIO|CORPORATTION|CORPORATIF|CORPORATI|CORPORA|CORPORATN)&quot;, r&quot; CORP&quot;, 'ABC CORPORATN')
  </code></pre>
  <p>I'm trying <code>'ABC CORPORATN'</code> and it's not converting it to <code>CORP</code>. I can't see what the issue is. Any help would be great.</p>
  <p>Edit: I have tried the other endings that I included in the regex and they all work except for corporatin (that I mentioned above)</p>