and { eq { hop { filter_eq { all_rows ; number & name ; naval store no 161 } ; date } ; hop { filter_eq { all_rows ; number & name ; briggs , dundee no 20 } ; date } } ; and { eq { hop { filter_eq { all_rows ; number & name ; naval store no 161 } ; date } ; 1918 } ; eq { hop { filter_eq { all_rows ; number & name ; briggs , dundee no 20 } ; date } ; 1918 } } } = true
select the rows whose number  name record fuzzily matches to naval store no 161 . take the date record of this row . select the rows whose number  name record fuzzily matches to briggs , dundee no 20 . take the date record of this row . the first record is equal to the second record . the date record of the first row is 1918 . the date record of the second row is 1918 .