3rd Battalion, 28th Marines
E471000
The 3rd Battalion, 28th Marines was a World War II United States Marine Corps infantry battalion best known as part of the regiment that fought in the Battle of Iwo Jima.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 3rd Battalion, 28th Marines canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4744837 — 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: 3rd Battalion, 28th Marines Context triple: [28th Marine Regiment, hasBattalion, 3rd Battalion, 28th Marines]
-
A.
3rd Battalion, 26th Marines
The 3rd Battalion, 26th Marines was an infantry battalion of the United States Marine Corps that saw notable combat service during the Vietnam War.
-
B.
2nd Battalion, 28th Marines
The 2nd Battalion, 28th Marines is a United States Marine Corps infantry battalion best known for its role in the Battle of Iwo Jima during World War II, including participation in the iconic flag-raising on Mount Suribachi.
-
C.
1st Battalion, 28th Marines
The 1st Battalion, 28th Marines is a United States Marine Corps infantry battalion that served as a key combat unit within the 28th Marine Regiment, notably active during World War II.
-
D.
3rd Battalion, 8th Marines
The 3rd Battalion, 8th Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and role within the 2nd Marine Division.
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E.
3rd Battalion, 1st Marines
The 3rd Battalion, 1st Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts including World War II, the Korean War, and the wars in Iraq and Afghanistan.
- 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: 3rd Battalion, 28th Marines Target entity description: The 3rd Battalion, 28th Marines was a World War II United States Marine Corps infantry battalion best known as part of the regiment that fought in the Battle of Iwo Jima.
-
A.
3rd Battalion, 26th Marines
The 3rd Battalion, 26th Marines was an infantry battalion of the United States Marine Corps that saw notable combat service during the Vietnam War.
-
B.
2nd Battalion, 28th Marines
The 2nd Battalion, 28th Marines is a United States Marine Corps infantry battalion best known for its role in the Battle of Iwo Jima during World War II, including participation in the iconic flag-raising on Mount Suribachi.
-
C.
1st Battalion, 28th Marines
The 1st Battalion, 28th Marines is a United States Marine Corps infantry battalion that served as a key combat unit within the 28th Marine Regiment, notably active during World War II.
-
D.
3rd Battalion, 8th Marines
The 3rd Battalion, 8th Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and role within the 2nd Marine Division.
-
E.
3rd Battalion, 1st Marines
The 3rd Battalion, 1st Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts including World War II, the Korean War, and the wars in Iraq and Afghanistan.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
United States Marine Corps infantry battalion
ⓘ
military unit ⓘ |
| allegiance |
United States of America
ⓘ
surface form:
United States
|
| branch | United States Marine Corps NERFINISHED ⓘ |
| campaign | Volcano and Ryukyu Islands campaign NERFINISHED ⓘ |
| conflict | World War II ⓘ |
| country | United States of America ⓘ |
| era | 1940s ⓘ |
| formedFor | service in World War II ⓘ |
| garrisonDuringWWII | Camp Pendleton NERFINISHED ⓘ |
| higherCommand | V Amphibious Corps NERFINISHED ⓘ |
| militaryRole | infantry ⓘ |
| notableBattle | Battle of Iwo Jima NERFINISHED ⓘ |
| notableFor | heavy combat on Iwo Jima ⓘ |
| opposed |
Imperial Japanese Army
NERFINISHED
ⓘ
Imperial Japanese Navy land forces NERFINISHED ⓘ |
| partOf |
28th Marine Regiment
NERFINISHED
ⓘ
5th Marine Division NERFINISHED ⓘ |
| primaryWeapon |
Browning Automatic Rifle
NERFINISHED
ⓘ
M1 Garand rifle NERFINISHED ⓘ |
| service | United States Marine Corps during World War II ⓘ |
| serviceBranch | USMC ground combat element ⓘ |
| standardSubunit |
headquarters company
ⓘ
rifle company ⓘ weapons company ⓘ |
| supportWeapons |
60 mm mortar
ⓘ
81 mm mortar ⓘ M1919 Browning machine gun NERFINISHED ⓘ |
| theaterOfOperations | Pacific Theater NERFINISHED ⓘ |
| typeOfUnit | battalion-sized formation ⓘ |
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: 3rd Battalion, 28th Marines Description of subject: The 3rd Battalion, 28th Marines was a World War II United States Marine Corps infantry battalion best known as part of the regiment that fought in the Battle of Iwo Jima.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.