and { only { filter_eq { all_rows ; focal plane in ft ( m ) ; n / a } } ; eq { hop { filter_eq { all_rows ; focal plane in ft ( m ) ; n / a } ; lighthouse } ; basco } } = true
select the rows whose focal plane in ft  m  record fuzzily matches to n  a . there is only one such row in the table . the lighthouse record of this unqiue row is basco .