J1: Use a colon to introduce a list, a quote, or examples after independent clauses: Use a colon to introduce a list, a quote, or examples after an independent clause. Do not use a colon if there is not an independent clause or after phrases like “such as” or “for example.” See Writing for Success Section 3.3 pp. 110-113 or the following: http://grammar.ccc.commnet.edu/grammar/marks/colon.htm
Your daily routine should include the following exercises: twenty knee-bends, fifty sit-ups, fifteen leg lifts, and five minutes of running in place.
An Appositive (a noun or noun phrase example that appears right next to the word it renames.)
My roommate is guilty of one of the deadly sins: gluttony.
Consider the words of John F. Kennedy: “Ask not what your country can do for you; ask what you can do for your country.”