and { only { filter_eq { all_rows ; partial thromboplastin time ; shortened } } ; eq { hop { filter_eq { all_rows ; partial thromboplastin time ; shortened } ; condition } ; c1inh deficiency } } = true
select the rows whose partial thromboplastin time record fuzzily matches to shortened . there is only one such row in the table . the condition record of this unqiue row is c1inh deficiency .