#upkeep__care__maintenance  activity involved in maintaining something in good working order; "he wrote the manual on car care"
  supertype:  #repair__fixing__fix__mending  the act of putting something in working order again
  subtype:  #camera_care  keeping a camera in good working order
  subtype:  #car_care__carcare  keeping a car in good working order
     subtype:  #oil_change__oilchange  replacing dirty oil with clean
  subtype:  #overhaul__inspection_and_repair__service  periodic maintenance on a car or machine; "it was time for an overhaul on the tractor"
     subtype:  #interim_overhaul__interimoverhaul  an overhaul between the regular times for overhauling
  subtype:  #pump_priming  introducing water into a pump to improve the seal and start the water flowing
  subtype:  #scheduled_maintenance__scheduledmaintenance  maintenance at a regularly scheduled time
  subtype:  #steam_fitting__steamfitting  care (installation and maintenance) of equipment for ventilating or heating or refrigerating

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