HNLMS Dolfijn
E538942
HNLMS Dolfijn is a Royal Netherlands Navy Walrus-class diesel-electric attack submarine used for intelligence gathering, surveillance, and special operations.
All labels observed (2)
| Label | Occurrences |
|---|---|
| HNLMS Dolfijn canonical | 3 |
| HNLMS Dolfijn (S808) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5523440 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: HNLMS Dolfijn Context triple: [Netherlands Submarine Service, operates, HNLMS Dolfijn]
-
A.
HNLMS
HNLMS is a ship prefix used by the Royal Netherlands Navy, standing for "His/Her Netherlands Majesty's Ship."
-
B.
HNLMS Kortenaer
HNLMS Kortenaer was a Dutch Admiralen-class destroyer of the Royal Netherlands Navy that served in the early stages of World War II before being lost in combat against Japanese forces.
-
C.
HNLMS Walrus
HNLMS Walrus is a Dutch Walrus-class attack submarine known for its advanced stealth capabilities and service in the Royal Netherlands Navy.
-
D.
HNLMS Zeeleeuw
HNLMS Zeeleeuw is a Walrus-class attack submarine of the Royal Netherlands Navy known for its stealth capabilities and long-range patrol missions.
-
E.
Dutch destroyer Witte de With
Dutch destroyer Witte de With was a Royal Netherlands Navy warship that served in the early stages of World War II, notably in the defense of the Dutch East Indies against Japanese forces.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: HNLMS Dolfijn Target entity description: HNLMS Dolfijn is a Royal Netherlands Navy Walrus-class diesel-electric attack submarine used for intelligence gathering, surveillance, and special operations.
-
A.
HNLMS
HNLMS is a ship prefix used by the Royal Netherlands Navy, standing for "His/Her Netherlands Majesty's Ship."
-
B.
HNLMS Kortenaer
HNLMS Kortenaer was a Dutch Admiralen-class destroyer of the Royal Netherlands Navy that served in the early stages of World War II before being lost in combat against Japanese forces.
-
C.
HNLMS Walrus
HNLMS Walrus is a Dutch Walrus-class attack submarine known for its advanced stealth capabilities and service in the Royal Netherlands Navy.
-
D.
HNLMS Zeeleeuw
HNLMS Zeeleeuw is a Walrus-class attack submarine of the Royal Netherlands Navy known for its stealth capabilities and long-range patrol missions.
-
E.
Dutch destroyer Witte de With
Dutch destroyer Witte de With was a Royal Netherlands Navy warship that served in the early stages of World War II, notably in the defense of the Dutch East Indies against Japanese forces.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Walrus-class submarine
ⓘ
diesel-electric attack submarine ⓘ submarine ⓘ |
| alliance | NATO ⓘ |
| armament |
mines
ⓘ
torpedoes ⓘ |
| constructionMaterial | steel ⓘ |
| country | Netherlands ⓘ |
| crewComplement | approximately 50 to 60 ⓘ |
| designedFor |
operations in littoral waters
ⓘ
operations in open ocean ⓘ |
| hasCapability |
anti-submarine warfare
ⓘ
anti-surface warfare ⓘ covert insertion of special forces ⓘ signals intelligence collection ⓘ surveillance of surface and subsurface targets ⓘ |
| hasFeature |
electronic support measures
ⓘ
low acoustic signature ⓘ periscopes and masts ⓘ retractable bow planes ⓘ sonar suite ⓘ teardrop hull design ⓘ |
| hasMissionProfile |
covert reconnaissance
ⓘ
maritime security operations ⓘ support to special operations forces ⓘ training with allied navies ⓘ |
| namedAfter | dolphin ⓘ |
| NATOStandardHullClassification | S808 ⓘ |
| operator | Royal Netherlands Navy ⓘ |
| partOf |
Royal Netherlands Navy submarine fleet
ⓘ
linked to:
Netherlands Submarine Service
|
| powerSource |
diesel engines
ⓘ
electric batteries ⓘ |
| primaryEnvironment | underwater ⓘ |
| propulsion | diesel-electric ⓘ |
| role |
attack submarine
ⓘ
covert intelligence platform ⓘ |
| serviceBranch | Royal Netherlands Navy ⓘ |
| submarineClass |
Walrus class
ⓘ
linked to:
Walrus-class submarine
|
| type | conventionally powered submarine ⓘ |
| use |
intelligence gathering
ⓘ
special operations ⓘ surveillance ⓘ |
| usedBy | NATO ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: HNLMS Dolfijn Description of subject: HNLMS Dolfijn is a Royal Netherlands Navy Walrus-class diesel-electric attack submarine used for intelligence gathering, surveillance, and special operations.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: HNLMS Dolfijn