title: In given array of strings, grab only vowel containing words
body: <p>I am new in ruby and learning basics, i am stuck on this for quite sometime.</p>
  <p>Tried doing :</p>
  <pre><code>Str=&quot;Hi there buddy, long time no see.&quot;
  
  arr=str.split()
  
  vow=[&quot;a&quot;,&quot;e&quot;,&quot;i&quot;,&quot;o&quot;,&quot;u&quot;]
  
  arr.select {|x| x.include? vow}
  </code></pre>
  <p>I don't even know what is wrong in this, and why it isn't working..</p>