1. A computer implemented method of analyzing contents in one or more contracts, the method comprising: obtaining primary features from the one or more contracts; grouping, by the primary features, a related portion of the one or more contracts; ordering and linking, by the primary features, the related portion of the one or more contracts by updating a features database to store the obtained primary features, and building a feature space matrix comprising pointers to the primary features in the features database, each pointer identifying a corresponding portion of the related portion of the one or more contracts; defining an advanced policy group comprising a plurality of policy groups, the plurality of policy groups grouping a plurality of policies, the plurality of policies comprising clause examples to compare against clauses in the related portion of the one or more contracts; verifying each of the plurality of policy groups to generate, for each policy group, a validity of the policy group, wherein the validity of the policy group has a state comprised of one of: a valid state indicating the policy group comprises at least one policy with a related clause from the related portion of the one or more contracts, and an invalid state indicating the policy group comprises policies without any related clause from the related portion of the one or more contracts; generating a validity of the advanced policy group by examining the validities of each of the plurality of policy groups; analyzing the contents in the related portion of the one or more contracts based on the validity of the advanced policy group; and updating a database using the related portion of the one or more contracts and the generated validity of the advanced policy group.