3. The system of claim 2 , wherein the normalized search term is based on at least one of: (i) at least one variant of the at least one key term, and (ii) a context of the at least one key term.
3. The system of claim 2 , wherein the normalized search term is based on at least one of: (i) at least one variant of the at least one key term, and (ii) a context of the at least one key term. 4. The system of claim 3 , wherein the set of normalized terms comprises two or more normalized terms, wherein the corpus of evidence is further indexed by: associating the set of normalized terms with the respective item of evidence; and storing the association.