Halliday & Matthiessen (1999: 195):
Professional associates: doctor, dentist, hairdresser, lawyer, teacher, butcherGeneral category: 'conscious'.Particular features: may be "possessed" by clients (my doctor, Jane's music teacher — on model of kin: my daughter, Fred's first cousin); formerly masculine, gender now (redesigned as) common (he/she)', membership very variable: butcher etc. probably leaving this class with change in shopping practices.