less { hop { filter_eq { all_rows ; name ; amy van dyken } ; time } ; hop { filter_eq { all_rows ; name ; vivienne rignall } ; time } } = true
select the rows whose name record fuzzily matches to amy van dyken . take the time record of this row . select the rows whose name record fuzzily matches to vivienne rignall . take the time record of this row . the first record is less than the second record .