A system includes acquisition of values of a plurality of columns of a first record of a set of records, generation of a first output based on the values, association of the first output with the first record, identification of a first one or more records of the set of records which include the value of a first column of the plurality of columns of the first record, identification of a second one or more records of the set of records which include the value of a second column of the plurality of columns of the first record, determination of a first intersection of records between the first one or more records and the second one or more records, identification of a third one or more records of the set of records which include the value of a third column of the plurality of columns of the first record, and determination of a second intersection of records between the first intersection of records and the third one or more records.