ReadonlydeepLook beneath, not only in (--deep).
Optional ReadonlymatchingA glob narrowing a count (--matching).
ReadonlypropertyWhat about it (status, count).
Optional ReadonlytargetWhich one, for a subject that names one (feed 4599); absent for one that does not (gather).
ReadonlywordsThe words a property takes before the comparison (tags PatientID: ['PatientID']).
One
expectclaim, as its subject is asked it.