2. The apparatus as in claim 1 , wherein the transformer module also transforms reference free-form text entries into reference rephrased objects, and the compiler module further comprises a patternization engine having patternization rules for converting each reference rephrased object into a reference pattern.
2. The apparatus as in claim 1 , wherein the transformer module also transforms reference free-form text entries into reference rephrased objects, and the compiler module further comprises a patternization engine having patternization rules for converting each reference rephrased object into a reference pattern. 6. The apparatus as in claim 2 , wherein the candidate rephrased objects and the reference rephrased objects are data structures comprising: a representation of information derived from an original free-form text entry; and a representation of the difference between the information contained in the rephrased object and the original free-form text entry.