Shirō Ishii
E395082
Shirō Ishii was a Japanese army medical officer and microbiologist who led Imperial Japan’s notorious biological warfare program during World War II, overseeing human experimentation and war crimes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Shirō Ishii canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3854108 — 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: Shirō Ishii Context triple: [Unit 731, commander, Shirō Ishii]
-
A.
Tasuku Honjo
Tasuku Honjo is a Japanese immunologist and Nobel laureate renowned for discovering the PD-1 protein, which led to groundbreaking cancer immunotherapy treatments.
-
B.
Shoji Sadao
Shoji Sadao was a Japanese-American architect and close collaborator of Buckminster Fuller and Isamu Noguchi, known for his work on innovative geodesic and environmental structures.
-
C.
Shibasaburo
Shibasaburo is a Japanese given name most famously borne by the pioneering bacteriologist Shibasaburo Kitasato, a co-discoverer of the plague bacillus.
-
D.
Hatazō Adachi
Hatazō Adachi was a Japanese general of the Imperial Japanese Army during World War II, best known for commanding forces in the Pacific theater.
-
E.
Matome Ugaki
Matome Ugaki was a Japanese Imperial Navy admiral during World War II, known for his close association with Admiral Isoroku Yamamoto and for leading one of the final kamikaze missions of the war.
- 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: Shirō Ishii Target entity description: Shirō Ishii was a Japanese army medical officer and microbiologist who led Imperial Japan’s notorious biological warfare program during World War II, overseeing human experimentation and war crimes.
-
A.
Tasuku Honjo
Tasuku Honjo is a Japanese immunologist and Nobel laureate renowned for discovering the PD-1 protein, which led to groundbreaking cancer immunotherapy treatments.
-
B.
Shoji Sadao
Shoji Sadao was a Japanese-American architect and close collaborator of Buckminster Fuller and Isamu Noguchi, known for his work on innovative geodesic and environmental structures.
-
C.
Shibasaburo
Shibasaburo is a Japanese given name most famously borne by the pioneering bacteriologist Shibasaburo Kitasato, a co-discoverer of the plague bacillus.
-
D.
Hatazō Adachi
Hatazō Adachi was a Japanese general of the Imperial Japanese Army during World War II, best known for commanding forces in the Pacific theater.
-
E.
Matome Ugaki
Matome Ugaki was a Japanese Imperial Navy admiral during World War II, known for his close association with Admiral Isoroku Yamamoto and for leading one of the final kamikaze missions of the war.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese military officer
ⓘ
microbiologist ⓘ person ⓘ war criminal ⓘ |
| academicDegree | Doctor of Medicine ⓘ |
| causeOfDeath | throat cancer ⓘ |
| conflict |
Sino-Japanese War (1937–1945)
ⓘ
surface form:
Second Sino-Japanese War
World War II ⓘ |
| countryOfCitizenship | Japan ⓘ |
| dateOfBirth | 1892-06-25 ⓘ |
| dateOfDeath | 1959-10-09 ⓘ |
| educatedAt | Kyoto Imperial University NERFINISHED ⓘ |
| employer | Imperial Japanese Army ⓘ |
| familyName | Ishii ⓘ |
| fieldOfWork |
biological warfare
ⓘ
microbiology ⓘ |
| founded | Unit 731 ⓘ |
| givenName | Shirō ⓘ |
| memberOf |
Unit 731
ⓘ
surface form:
Imperial Japanese Army Medical Corps
|
| militaryBranch | Imperial Japanese Army ⓘ |
| militaryRank | lieutenant general ⓘ |
| name | Shirō Ishii self-link ⓘ |
| nativeName | 石井 四郎 ⓘ |
| notableFor |
human experimentation
ⓘ
leadership of Imperial Japan’s biological warfare program ⓘ war crimes during World War II ⓘ |
| occupation |
army medical officer
ⓘ
microbiologist ⓘ |
| participantIn | Japanese biological warfare program ⓘ |
| perpetratorOf |
crimes against humanity
ⓘ
war crimes ⓘ |
| placeOfBirth |
Chiyoda, Tokyo, Japan
ⓘ
surface form:
Chiyoda, Chiba Prefecture, Japan
|
| placeOfDeath |
Tokyo
ⓘ
surface form:
Tokyo, Japan
|
| positionHeld |
director of biological warfare research for the Imperial Japanese Army
ⓘ
head of Unit 731 ⓘ |
| reasonForImmunity | exchange of biological warfare data with U.S. authorities ⓘ |
| receivedImmunityFrom |
United States of America
ⓘ
surface form:
United States
|
| responsibleFor |
biological weapons testing on humans
ⓘ
deliberate infection of humans with anthrax ⓘ deliberate infection of humans with cholera ⓘ deliberate infection of humans with plague ⓘ field testing of biological weapons in China ⓘ vivisection of prisoners ⓘ |
| subjectOf |
historical research on Japanese biological warfare
ⓘ
war crimes investigations ⓘ |
| wasNotProsecutedBy | International Military Tribunal for the Far East ⓘ |
| workLocation |
Harbin
ⓘ
surface form:
Harbin, Manchukuo
Pingfang district, near Harbin ⓘ |
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: Shirō Ishii Description of subject: Shirō Ishii was a Japanese army medical officer and microbiologist who led Imperial Japan’s notorious biological warfare program during World War II, overseeing human experimentation and war crimes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.