Wrong: although i drink coffee; he drinks tea. Because although i drink coffee is a subordinate clause. Dickens"s most memorable characters include uriah heap, an unctuous clerk; Sloppy, a gifted mimic; and dick swiveller, a failed playboy. Appositive phrase: an unctuous clerk, a gifted mimic, a failed playboy . Use semi colons to separate items in the list when each item contains internal punctuation (the comma that separates the appositive phrase from the noun it renames. ) Internal punctuation is when a comma is used not to link another point or phrase but it links something related to the phrase. I and my family went to the bighead river, which was muddy; the beaver valley. Motel, which was overpriced; and raper"s park, which was unfortunately named. Use a colon to introduce a list, appositive phrase or quotation. Use a colon after a main clause. List: the daily routine should include the following: three scotch-and-sodas, fifty cigarettes, and ten cups of coffee.