Big Bertha howitzer
E165838
The Big Bertha howitzer was a massive German siege artillery piece used in World War I, renowned for its ability to destroy heavily fortified positions with long-range, high-caliber shells.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Big Bertha | 2 |
| Big Bertha howitzer canonical | 2 |
| Kaiser Wilhelm Geschütz | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1452541 — 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: Big Bertha howitzer Context triple: [Krupp, developed, Big Bertha howitzer]
-
A.
Schwerer Gustav railway gun
The Schwerer Gustav railway gun was an enormous German World War II super-heavy artillery piece, one of the largest cannons ever built, designed to destroy heavily fortified targets.
-
B.
Karl-Gerät self-propelled mortars
The Karl-Gerät self-propelled mortars were massive German World War II siege artillery pieces designed to fire extremely heavy shells against heavily fortified targets.
-
C.
Katyusha rocket launcher
The Katyusha rocket launcher was a Soviet World War II-era multiple rocket artillery system famed for its devastating salvos and distinctive howling sound.
-
D.
Maxim machine gun
The Maxim machine gun is a pioneering late 19th-century recoil-operated, water-cooled heavy machine gun that became one of the first fully automatic weapons widely adopted by major armies around the world.
-
E.
Krab self-propelled howitzer
The Krab self-propelled howitzer is a modern Polish 155 mm tracked artillery system designed for long-range, high-precision fire support on the battlefield.
- 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: Big Bertha howitzer Target entity description: The Big Bertha howitzer was a massive German siege artillery piece used in World War I, renowned for its ability to destroy heavily fortified positions with long-range, high-caliber shells.
-
A.
Schwerer Gustav railway gun
The Schwerer Gustav railway gun was an enormous German World War II super-heavy artillery piece, one of the largest cannons ever built, designed to destroy heavily fortified targets.
-
B.
Karl-Gerät self-propelled mortars
The Karl-Gerät self-propelled mortars were massive German World War II siege artillery pieces designed to fire extremely heavy shells against heavily fortified targets.
-
C.
Katyusha rocket launcher
The Katyusha rocket launcher was a Soviet World War II-era multiple rocket artillery system famed for its devastating salvos and distinctive howling sound.
-
D.
Maxim machine gun
The Maxim machine gun is a pioneering late 19th-century recoil-operated, water-cooled heavy machine gun that became one of the first fully automatic weapons widely adopted by major armies around the world.
-
E.
Krab self-propelled howitzer
The Krab self-propelled howitzer is a modern Polish 155 mm tracked artillery system designed for long-range, high-precision fire support on the battlefield.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
German weapon
ⓘ
artillery piece ⓘ siege howitzer ⓘ |
| approximateRange | up to about 12 km ⓘ |
| approximateWeightCategory | hundreds of tons including transport equipment ⓘ |
| artilleryType | howitzer ⓘ |
| caliber | 420 mm ⓘ |
| category |
World War I artillery
ⓘ
super‑heavy artillery ⓘ |
| countryOfOrigin | German Empire ⓘ |
| crewRequirement | large artillery crew ⓘ |
| deploymentMode | pre‑planned siege positions ⓘ |
| designedBy | Krupp engineers ⓘ |
| designedFor |
attacking fortresses
ⓘ
destroying fortified positions ⓘ long‑range bombardment ⓘ |
| developedFor | Schlieffen Plan operations ⓘ |
| era | early 20th century ⓘ |
| famousFor |
destructive power against forts
ⓘ
massive caliber ⓘ psychological impact ⓘ |
| firingPlatform |
rail‑mounted carriage
ⓘ
special wheeled carriage ⓘ |
| historicalSignificance | symbol of German heavy artillery in World War I ⓘ |
| influenced | later super‑heavy artillery designs ⓘ |
| introduced | 1914 ⓘ |
| languageOfName | German ⓘ |
| logisticalRequirement |
multiple transport wagons
ⓘ
special rail transport ⓘ |
| manufacturer |
Krupp (company)
ⓘ
surface form:
Krupp
|
| materialEffect | demolition of concrete fortifications ⓘ |
| munitionWeightCategory | extremely heavy shells ⓘ |
| namedAfter |
Bertha Krupp von Bohlen und Halbach
ⓘ
surface form:
Bertha Krupp
|
| notableUse |
Siege of Antwerp
ⓘ
Battle of Liège ⓘ
surface form:
Siege of Liège
Siege of Maubeuge ⓘ Siege of Namur ⓘ |
| operatedBy | German artillery units ⓘ |
| originalName | Dicke Bertha ⓘ |
| propellant | bagged charges ⓘ |
| role | siege artillery ⓘ |
| shellType |
armor‑piercing shell
ⓘ
high‑explosive shell ⓘ |
| status | retired ⓘ |
| translationOfName |
Big Bertha howitzer
self-linksurface differs
ⓘ
surface form:
Big Bertha
|
| usedBy | Imperial German Army ⓘ |
| usedInConflict | World War I ⓘ |
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: Big Bertha howitzer Description of subject: The Big Bertha howitzer was a massive German siege artillery piece used in World War I, renowned for its ability to destroy heavily fortified positions with long-range, high-caliber shells.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Krupp
this entity surface form:
Big Bertha
this entity surface form:
Kaiser Wilhelm Geschütz
this entity surface form:
Big Bertha