eq { diff { hop { filter_eq { all_rows ; incumbent ; gene taylor } ; first elected } ; hop { filter_eq { all_rows ; incumbent ; harold volkmer } ; first elected } } ; -4 years } = true
select the rows whose incumbent record fuzzily matches to gene taylor . take the first elected record of this row . select the rows whose incumbent record fuzzily matches to harold volkmer . take the first elected record of this row . the second record is 4 years larger than the first record .