16. The method of claim 11 , wherein (D) comprises identifying a second phrase from among a plurality of second phrases representing the concept.
11. A computer-implemented method comprising: (A) identifying a first phrase, the first phrase representing an expanded written form of a concept; (B) receiving an instruction from a user to modify the first phrase; (C) in response to receipt of the instruction, identifying a second phrase representing an abbreviated written form of the concept; and (D) replacing the first phrase with the second phrase; and (E) after (D), replacing the second phrase with the first phrase; wherein the instruction does not include the second phrase.