| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Manual wheelchair | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Motorized wheelchair device (physical object) | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Wheelchair unspecified | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Provision of wheelchair | Direct device | True | Wheelchair device (physical object) | Inferred relationship | Some | 1 | 
| Wheelchair maintenance and repair (procedure) | Direct device | False | Wheelchair device (physical object) | Inferred relationship | Some | 1 | 
| Wheelchair maintenance and repair (procedure) | Direct device | True | Wheelchair device (physical object) | Inferred relationship | Some | 1 | 
| Wheelchair accessory | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Special-function wheelchair | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Power-driven wheelchair | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Power-assisted wheelchair | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Manual-driven wheelchair | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Assistive scooter | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Urine collection bag suspender, non-wearable | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Chair occupancy alarm, battery-powered (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Portable ramp | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Fixed ramp (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Assistive joystick-control training device (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Assistive switch-control training device (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Assistive coverall (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Mud-filled chair cushion (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Bed/chair occupancy alarm sensor | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Alternating-pressure chair cushion, single-use | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Alternating-pressure chair cushion, reusable | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Soft-rubber chair cushion | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Air-filled chair cushion (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Gel-filled chair cushion (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Foam-filled chair cushion | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Assistive input-control operation training device, selection techniques | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Water-filled chair cushion (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Wheelchair recliner, battery-powered | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Wheelchair recliner, line-powered (physical object) | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Animal-skin chair pad | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Pure wool pillow | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Draping incontinence liner | Is a | False | Wheelchair device (physical object) | Inferred relationship | Some |  | 
| Wheelchair, occupant-driven, bimanual-chain-operated, non-collapsible | Is a | True | Wheelchair device (physical object) | Inferred relationship | Some |  |