Chelmo extermination camp
E951286
Chelmno extermination camp was a Nazi German killing center in occupied Poland where hundreds of thousands of Jews, Roma, and other victims were murdered, primarily using gas vans, during the Holocaust.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Chełmno extermination camp | 3 |
| Chelmo extermination camp canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11700784 — 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: Chelmo extermination camp Context triple: [Nazi deportation of Roma, destination, Chelmo extermination camp]
-
A.
Trawniki concentration camp
Trawniki concentration camp was a Nazi SS training and forced-labor camp in occupied Poland, notorious for preparing auxiliary guards who participated in the Holocaust and for exploiting and murdering Jewish prisoners.
-
B.
Monowitz concentration camp
Monowitz concentration camp was a Nazi German labor and extermination subcamp of Auschwitz, where prisoners were forced to work under brutal conditions for the nearby IG Farben industrial complex.
-
C.
Gusen concentration camp
Gusen concentration camp was a Nazi German concentration and extermination complex in Austria, closely linked to Mauthausen, where tens of thousands of political prisoners, forced laborers, and other persecuted groups were subjected to brutal conditions and mass murder during World War II.
-
D.
Grini concentration camp
Grini concentration camp was a major Nazi-run detention facility in Norway during World War II, used primarily to imprison political prisoners, resistance members, and other opponents of the occupation.
-
E.
Plaszow concentration camp
Plaszow concentration camp was a Nazi German forced-labor and concentration camp near Kraków, Poland, notorious for its brutal conditions and later depicted in the film "Schindler’s List."
- 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: Chelmo extermination camp Target entity description: Chelmno extermination camp was a Nazi German killing center in occupied Poland where hundreds of thousands of Jews, Roma, and other victims were murdered, primarily using gas vans, during the Holocaust.
-
A.
Trawniki concentration camp
Trawniki concentration camp was a Nazi SS training and forced-labor camp in occupied Poland, notorious for preparing auxiliary guards who participated in the Holocaust and for exploiting and murdering Jewish prisoners.
-
B.
Monowitz concentration camp
Monowitz concentration camp was a Nazi German labor and extermination subcamp of Auschwitz, where prisoners were forced to work under brutal conditions for the nearby IG Farben industrial complex.
-
C.
Gusen concentration camp
Gusen concentration camp was a Nazi German concentration and extermination complex in Austria, closely linked to Mauthausen, where tens of thousands of political prisoners, forced laborers, and other persecuted groups were subjected to brutal conditions and mass murder during World War II.
-
D.
Grini concentration camp
Grini concentration camp was a major Nazi-run detention facility in Norway during World War II, used primarily to imprison political prisoners, resistance members, and other opponents of the occupation.
-
E.
Plaszow concentration camp
Plaszow concentration camp was a Nazi German forced-labor and concentration camp near Kraków, Poland, notorious for its brutal conditions and later depicted in the film "Schindler’s List."
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Holocaust site
ⓘ
Nazi extermination camp ⓘ killing center ⓘ |
| country | Nazi Germany ⓘ |
| endDate | 1943-03 ⓘ |
| estimatedNumberOfVictims |
at least 150000
ⓘ
up to 300000 ⓘ |
| evidenceSource |
perpetrator testimonies
ⓘ
postwar trials ⓘ survivor testimonies ⓘ |
| finalClosureDate | 1945-01 ⓘ |
| GermanName | Kulmhof NERFINISHED ⓘ |
| hasComponent |
cremation pyres
ⓘ
forest burial and cremation site ⓘ gas van garage ⓘ manor house killing site ⓘ mass graves ⓘ |
| jurisdictionDuringOperation | Reichsgau Wartheland NERFINISHED ⓘ |
| killingMethod | carbon monoxide poisoning ⓘ |
| languageOfToponym | Polish ⓘ |
| locatedIn |
Warthegau
NERFINISHED
ⓘ
occupied Poland ⓘ |
| locatedNear |
Chelmno nad Nerem
NERFINISHED
ⓘ
Koło NERFINISHED ⓘ |
| memorialStatus |
Holocaust memorial site
ⓘ
museum ⓘ |
| notableFor | first stationary extermination camp using gas vans ⓘ |
| operatedBy |
German police
NERFINISHED
ⓘ
SS NERFINISHED ⓘ |
| partOf |
Final Solution
NERFINISHED
ⓘ
the Holocaust NERFINISHED ⓘ |
| perpetratorOrganization | SS-Sonderkommando Kulmhof NERFINISHED ⓘ |
| primaryKillingMethod | gas vans ⓘ |
| reopened | 1944-06 ⓘ |
| startDate | 1941-12-08 ⓘ |
| usedFor |
genocide of Jews
ⓘ
mass murder ⓘ murder of Polish civilians ⓘ murder of Roma ⓘ murder of Soviet POWs ⓘ |
| victimGroup |
Austrian Jews
ⓘ
Czech Jews NERFINISHED ⓘ German Jews ⓘ Jews NERFINISHED ⓘ Lodz Ghetto Jews NERFINISHED ⓘ Poles NERFINISHED ⓘ Roma NERFINISHED ⓘ Slovak Jews NERFINISHED ⓘ Soviet prisoners of war ⓘ |
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: Chelmo extermination camp Description of subject: Chelmno extermination camp was a Nazi German killing center in occupied Poland where hundreds of thousands of Jews, Roma, and other victims were murdered, primarily using gas vans, during the Holocaust.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chełmno extermination camp
this entity surface form:
Chełmno extermination camp
this entity surface form:
Chełmno extermination camp