and { only { filter_eq { filter_eq { all_rows ; label ; alfa records } ; format ; stereo lp } } ; eq { hop { filter_eq { filter_eq { all_rows ; label ; alfa records } ; format ; stereo lp } ; date } ; october 21 , 1981 } } = true
select the rows whose label record fuzzily matches to alfa records . among these rows , select the rows whose format record fuzzily matches to stereo lp . there is only one such row in the table . the date record of this unqiue row is october 21 , 1981 .