1. A non-transitory computer readable medium storing program code for determination of standard exact clauses and non-standard clauses from a plurality of documents, the program code comprising instructions that when executed by a processor cause the processor to: obtain a primary policy comprising one or more features, a clause example, and a first threshold for use in a semantic language evaluator to generate a plurality of feature replaced clauses by automatically replacing one or more of a plurality of original clauses in a plurality of documents with the one or more features and to compare each of the plurality of feature replaced clauses according to the primary policy to provide a first feature data set comprising standard clauses; replace, automatically, an available variation of one of the standard clauses in the plurality of documents with a variable; compare a clause and at least one of the clause example and the variable, the clause obtained from the plurality of documents with the available variation replaced with the variable; obtain, in response to the comparison, a standard exact clause comprising the clause matching at least one of the clause example and the variable; obtain a second feature data set encompassing the first feature data set, the second feature data set corresponding to a secondary policy, the secondary policy comprising the one or more features, the clause example, and a second threshold for use in the semantic language evaluator; obtain a difference data set comprised of a difference between the first feature data set and the second feature data set, the difference data set comprising a non-standard clause, the non-standard clause being semantically related to but not matching the clause example; and update, automatically in response to obtaining the difference data set, a database to identify the standard exact clause and the non-standard clause from the plurality of documents.