| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Accident to watercraft causing immersion | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Injury caused by watercraft accident involving collision | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Machinery accident in water transport | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Explosion, fire or burning in watercraft | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accidental poisoning by gases or fumes on ship | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Atomic power plant malfunction in watercraft | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft causing mechanical injury | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Immersion or drowning due to fall overboard from vessel without accident to vessel | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall on board vessel without accident to vessel | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Injury to swimmer by watercraft propeller | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft causing other injury | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Injury caused by watercraft accident involving collision, member of crew of other watercraft injured | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft causing injury NOS | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft involving collision | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Injury to swimmer by watercraft propeller | Due to | True | Water transport accident | Inferred relationship | Existential restriction modifier | 1 | 
| Fall due to collision or other accident to watercraft | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, occupant of small unpowered boat injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, occupant of small powered boat injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, member of crew of other watercraft injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, passenger of other watercraft injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, water skier injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, swimmer injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, docker or stevedore injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, other specified person injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall due to collision or other accident to watercraft, unspecified person injured | Due to | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Hit by boat, or part thereof, after fall from boat | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Fall on stairs or ladders in water transport | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Hit by boat while water skiing | Is a | True | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft causing other injury | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  | 
| Accident to watercraft causing injury NOS | Is a | False | Water transport accident | Inferred relationship | Existential restriction modifier |  |