<span>These nonessential elements, which can be words, phrases, or clauses, are set off with commas. Rule: Use commas before and after nonessential words, phrases, and clauses, that is, elements embedded in the sentence that interrupt it without changing the essential meaning.</span>
The Cascade of the melody helped the child to fall into a peaceful slumber.
1.nickjr
2. Nickelodeon
3. Disney Channel