German submarine U-75
E502729
German submarine U-75 was a Type VIIB U-boat of Nazi Germany's Kriegsmarine that operated during World War II, conducting Atlantic patrols and commerce raiding before being sunk in 1941.
All labels observed (1)
| Label | Occurrences |
|---|---|
| German submarine U-75 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5217194 — 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: German submarine U-75 Context triple: [HMS Hampshire, mineLayer, German submarine U-75]
-
A.
German submarine U-616
German submarine U-616 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine that operated in the Mediterranean during World War II, engaging Allied naval forces before being sunk in 1944.
-
B.
German U-boat U-47
German U-boat U-47 was a World War II German submarine commanded by Günther Prien, best known for its daring and highly successful 1939 raid into the British naval base at Scapa Flow.
-
C.
German tanker Altmark
The German tanker Altmark was a World War II-era naval auxiliary ship of Nazi Germany, best known for its role in the 1940 Altmark Incident involving the rescue of British prisoners in Norwegian waters.
-
D.
U-9
U-9 was a German World War I U-boat famed for its early and dramatic successes in submarine warfare, including the sinking of three British cruisers in a single engagement in 1914.
-
E.
U-505 submarine
The U-505 submarine is a captured German World War II U-boat preserved as a historic naval artifact and war prize.
- 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: German submarine U-75 Target entity description: German submarine U-75 was a Type VIIB U-boat of Nazi Germany's Kriegsmarine that operated during World War II, conducting Atlantic patrols and commerce raiding before being sunk in 1941.
-
A.
German submarine U-616
German submarine U-616 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine that operated in the Mediterranean during World War II, engaging Allied naval forces before being sunk in 1944.
-
B.
German U-boat U-47
German U-boat U-47 was a World War II German submarine commanded by Günther Prien, best known for its daring and highly successful 1939 raid into the British naval base at Scapa Flow.
-
C.
German tanker Altmark
The German tanker Altmark was a World War II-era naval auxiliary ship of Nazi Germany, best known for its role in the 1940 Altmark Incident involving the rescue of British prisoners in Norwegian waters.
-
D.
U-9
U-9 was a German World War I U-boat famed for its early and dramatic successes in submarine warfare, including the sinking of three British cruisers in a single engagement in 1914.
-
E.
U-505 submarine
The U-505 submarine is a captured German World War II U-boat preserved as a historic naval artifact and war prize.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
German Type VIIB submarine
ⓘ
U-boat ⓘ military vessel ⓘ |
| armament |
1 x 2 cm anti-aircraft gun
ⓘ
1 x 8.8 cm SK C/35 naval gun ⓘ 14 torpedoes ⓘ 220 rounds for 8.8 cm gun ⓘ 5 x 53.3 cm torpedo tubes ⓘ |
| beam_m | 6.20 ⓘ |
| casualtiesNumber | ~14 ⓘ |
| causeOfSinking | depth charges ⓘ |
| commissionDate | 1940-06-15 ⓘ |
| commissionedUnderCommandOf | Helmut Ringelmann NERFINISHED ⓘ |
| conflict | World War II ⓘ |
| country | Nazi Germany ⓘ |
| crewComplement_max | 60 ⓘ |
| crewComplement_min | 44 ⓘ |
| damagedShips_number | 1 ⓘ |
| dateSunk | 1941-12-28 ⓘ |
| displacementSubmerged_tons | 857 ⓘ |
| displacementSurfaced_tons | 753 ⓘ |
| draught_m | 4.74 ⓘ |
| fate | sunk ⓘ |
| height_m | 9.50 ⓘ |
| laidDownBy | Bremer Vulkan shipyard NERFINISHED ⓘ |
| laidDownDate | 1939-11-28 ⓘ |
| launchDate | 1940-03-31 ⓘ |
| maximumSubmergedSpeed_kn | 8.0 ⓘ |
| maximumSurfaceSpeed_kn | 17.9 ⓘ |
| navalForceOpposed | Royal Navy NERFINISHED ⓘ |
| operator | Kriegsmarine NERFINISHED ⓘ |
| patrolArea |
Mediterranean Sea
NERFINISHED
ⓘ
North Atlantic NERFINISHED ⓘ |
| pennantNumber | U-75 NERFINISHED ⓘ |
| placeSunk | off Mersa Matruh, Egypt ⓘ |
| pressureHullLength_m | 48.80 ⓘ |
| primaryTheater | Atlantic Ocean NERFINISHED ⓘ |
| propellerDiameter_m | 1.23 ⓘ |
| propellerShafts | 2 ⓘ |
| propulsion |
2 AEG GU 460/8-276 electric motors
ⓘ
2 Germaniawerft F46 diesel engines ⓘ |
| rangeSubmerged_nm | 90 at 4 kn ⓘ |
| rangeSurfaced_nm | 8700 at 10 kn ⓘ |
| role | commerce raiding ⓘ |
| shipyardLocation | Bremen-Vegesack NERFINISHED ⓘ |
| submarineType | Type VIIB ⓘ |
| sunkBy | Royal Navy destroyer HMS Kipling NERFINISHED ⓘ |
| sunkShips_number | 10 ⓘ |
| sunkShips_type | merchant ships ⓘ |
| survivorsNumber | ~30 ⓘ |
| testDepth_m | 230 ⓘ |
| totalLength_m | 66.50 ⓘ |
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: German submarine U-75 Description of subject: German submarine U-75 was a Type VIIB U-boat of Nazi Germany's Kriegsmarine that operated during World War II, conducting Atlantic patrols and commerce raiding before being sunk in 1941.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
HMS Hampshire