| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Train derailment | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Injury whilst boarding or alighting from train | Due to | True | Railway accident | Inferred relationship | Some | 1 | 
| Injury whilst boarding or alighting from moving train | Due to | True | Railway accident | Inferred relationship | Some | 2 | 
| Injury whilst boarding or alighting from stationary train | Due to | True | Railway accident | Inferred relationship | Some | 2 | 
| Injury to occupant of railway vehicle in collision with road vehicle | Due to | True | Railway accident | Inferred relationship | Some | 1 | 
| Injury to body part projecting from railway vehicle | Due to | True | Railway accident | Inferred relationship | Some | 1 | 
| Train accident involving collision with rolling stock | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles of any kind | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles, railway employee injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles, passenger injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles, pedestrian injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles, pedal cyclist injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train collision with buffers | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Train collision with rock on railway | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway accident involving derailment without antecedent collision | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Derailment due to train problem, without antecedent collision | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train accident involving explosion, fire or burning | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Fall in, on, or from train | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway vehicle collision with fallen tree on railway | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway vehicle collision with gates | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway vehicle collision with platform | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway vehicle collision with malicious obstruction | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Railway accident involving derailment without collision | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Hit by railway vehicle | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Injured by moving object in or near railway vehicle | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Injury whilst boarding or alighting from train | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Injury to occupant of railway vehicle in collision with road vehicle | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train collision with streetcar | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Injury to body part projecting from railway vehicle | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Person on outside of moving train colliding with fixed structure | Is a | True | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicles, other specified person injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Collision between railway vehicle, unspecified person injured | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Railway accident involving collision with other object | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train collision with other nonmotor vehicle | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train collision with other object | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Train collision with object NOS | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Derailment without antecedent collision NOS | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Other specified railway accident | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Other specified rail accident, NOS | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Unspecified railway accidents | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Railway accident NOS | Is a | False | Railway accident | Inferred relationship | Some |  | 
| Other motor vehicle traffic accident involving collision on the highway | Is a | False | Railway accident | Inferred relationship | Some |  |