title: RegEx to match sentence containing fixed number of commas
body: <p>I'd like to match sentence with a certain number of commas. Assuming sentence starts with '. '.</p>
  
  <p>Although I managed to get what I want, my RegEx somehow matches the whole paragraph.</p>
  
  <p>So in other words, I'd like to delimit beginning of this to just one sentence.</p>
  
  <p>My code is as follows:</p>
  
  <pre><code>/(?:\.+.+\,+.+\,+.+\,+.+\,+.+)/ig
  </code></pre>
  
  <p>I'm doing it in js, btw.</p>
  
  <p>And the dummy paragraph I am working with:</p>
  
  <p>This is RegEx. Whether you think so, too. I'm telling you, this, is what, I, think about this.</p>