33. A method according to claim 32, wherein two words are marked with one word enclosed by a single set of parenthesis while the other word is enclosed in a double set of brackets.
33. A method according to claim 32, wherein two words are marked with one word enclosed by a single set of parenthesis while the other word is enclosed in a double set of brackets. 34. A method according to claim 33, wherein means are provided responsive to the input means for permitting another word to be substituted for each one of the marked words sequentially.