A system including an associative memory and an input device configured to receive a first query or comparison request. The associative memory is configured to: responsive to receiving the first query or comparison request, locate an entity value having an attribute value matching a term of the first query or comparison request; responsive to locating the entity value, return a first list of results including the entity value; add, as a required search term, at least one of first results from the first list to a second query or comparison request, the second query or comparison request further including all terms of the first query or comparison request; perform the second query or comparison request and, as a result, return a second list of resource references; use the second list to retrieve source data; combine the entity value with the source data to form a combination; and return the combination.