7. The method of claim 1 , wherein generating the plurality of keys of the dictionary, from the second textual data comprises: scanning the second textual data; while scanning the second textual data, identifying words and phrases within the second textual data and repetitions of the words and phrases within the second textual data; and, generating the plurality of keys from the words and phrases and the repetitions that have been identified.
7. The method of claim 1 , wherein generating the plurality of keys of the dictionary, from the second textual data comprises: scanning the second textual data; while scanning the second textual data, identifying words and phrases within the second textual data and repetitions of the words and phrases within the second textual data; and, generating the plurality of keys from the words and phrases and the repetitions that have been identified. 8. The method of claim 7 , wherein the words and the phrases are atomic in that the words and the phrases are indivisible into shorter words and phrases that are repetitive within the second textual data.