and { only { filter_eq { all_rows ; original west end performer ; n / a } } ; eq { hop { filter_eq { all_rows ; original west end performer ; n / a } ; character } ; ben weatherstaff } } = true
select the rows whose original west end performer record fuzzily matches to n  a . there is only one such row in the table . the character record of this unqiue row is ben weatherstaff .