title: Python 3: Slice a rhyme
body: <p>Assign sub_lyric with 'cow' by slicing rhyme_lyric from start_index to end_index. Sample output from the given program:</p>
  
  <p>cow</p>
  
  <pre><code>start_index = 4
  end_index = 7
  rhyme_lyric = 'The cow jumped over the moon.'
  sub_lyric = rhyme_lyric''' Your solution goes here '''
  print(sub_lyric)
  </code></pre>