4th Marine Division
E17786
The 4th Marine Division is a United States Marine Corps infantry division renowned for its pivotal amphibious assaults in the Pacific Theater during World War II, including the capture of Iwo Jima.
All labels observed (4)
| Label | Occurrences |
|---|---|
| 4th Marine Division canonical | 2 |
| U.S. 4th Marine Division | 2 |
| 4th Marine Division (United States) | 1 |
| 4th Marine Division (elements) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T88990 — 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: 4th Marine Division Context triple: [Battle of Iwo Jima, primaryUSForces, 4th Marine Division]
-
A.
3rd Marine Division
The 3rd Marine Division is a United States Marine Corps infantry division renowned for its pivotal combat role in the Pacific Theater during World War II and its continued service in subsequent conflicts.
-
B.
1st Marine Division (United States)
The 1st Marine Division (United States) is a storied infantry division of the U.S. Marine Corps renowned for its pivotal combat role in major conflicts from World War II through the present.
-
C.
5th Marine Regiment
The 5th Marine Regiment is one of the most decorated infantry regiments in the United States Marine Corps, renowned for its combat service in major conflicts from World War I through the present.
-
D.
7th Marine Regiment
The 7th Marine Regiment is a storied infantry regiment of the United States Marine Corps known for its combat service in major conflicts including World War II, Korea, Vietnam, and the Global War on Terror.
-
E.
11th Marine Regiment
The 11th Marine Regiment is a United States Marine Corps artillery regiment that provides fire support to the 1st Marine Division.
- 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: 4th Marine Division Target entity description: The 4th Marine Division is a United States Marine Corps infantry division renowned for its pivotal amphibious assaults in the Pacific Theater during World War II, including the capture of Iwo Jima.
-
A.
3rd Marine Division
The 3rd Marine Division is a United States Marine Corps infantry division renowned for its pivotal combat role in the Pacific Theater during World War II and its continued service in subsequent conflicts.
-
B.
1st Marine Division (United States)
The 1st Marine Division (United States) is a storied infantry division of the U.S. Marine Corps renowned for its pivotal combat role in major conflicts from World War II through the present.
-
C.
5th Marine Regiment
The 5th Marine Regiment is one of the most decorated infantry regiments in the United States Marine Corps, renowned for its combat service in major conflicts from World War I through the present.
-
D.
7th Marine Regiment
The 7th Marine Regiment is a storied infantry regiment of the United States Marine Corps known for its combat service in major conflicts including World War II, Korea, Vietnam, and the Global War on Terror.
-
E.
11th Marine Regiment
The 11th Marine Regiment is a United States Marine Corps artillery regiment that provides fire support to the 1st Marine Division.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States Marine Corps division
ⓘ
infantry division ⓘ |
| allegiance |
United States of America
ⓘ
surface form:
United States
|
| awarded |
Navy Unit Commendation
ⓘ
Presidential Unit Citation (United States) ⓘ
surface form:
Presidential Unit Citation
|
| awardedFor | actions in the Pacific during World War II ⓘ |
| branchType | infantry ⓘ |
| commandStructure | Marine Air-Ground Task Force concept ⓘ |
| component |
United States Marine Corps Reserve
ⓘ
surface form:
Marine Forces Reserve
|
| conflict | World War II ⓘ |
| country | United States of America ⓘ |
| engagement |
assault on Iwo Jima in the Volcano Islands
ⓘ
assault on Roi-Namur in the Marshall Islands ⓘ assault on Saipan in the Mariana Islands ⓘ assault on Tinian in the Mariana Islands ⓘ |
| formed | August 16, 1943 ⓘ |
| garrison |
New Orleans
ⓘ
surface form:
New Orleans, Louisiana
|
| heritage | World War II combat division lineage ⓘ |
| includes |
artillery units
ⓘ
combat service support units ⓘ combat support units ⓘ infantry regiments ⓘ reconnaissance units ⓘ |
| militaryBranch | United States Marine Corps ⓘ |
| motto |
Fighting Fourth
ⓘ
surface form:
The Fighting Fourth
|
| nickname | Fighting Fourth ⓘ |
| notableBattle |
Battle of Iwo Jima
ⓘ
Battle of Kwajalein ⓘ Battle of Roi-Namur ⓘ Battle of Saipan ⓘ Invasion of Tinian ⓘ
surface form:
Battle of Tinian
|
| notableContribution | supporting the capture of Iwo Jima airfields ⓘ |
| notableFor |
capture of key Japanese-held islands in the Central Pacific
ⓘ
rapid sequence of amphibious assaults in World War II ⓘ |
| notableOperationType | amphibious assault ⓘ |
| participatedIn | island-hopping campaign in the Pacific ⓘ |
| partOf |
United States Marine Corps Reserve
ⓘ
surface form:
United States Marine Corps Forces Reserve
|
| postwarStatus | reconstituted as a reserve division ⓘ |
| primaryMission | to provide combat-ready reserve forces ⓘ |
| role | ground combat element ⓘ |
| serviceStatus | active in the Marine Corps Reserve ⓘ |
| size | division ⓘ |
| specialization |
amphibious warfare
ⓘ
expeditionary operations ⓘ |
| subordinateTo |
United States Marine Corps Reserve
ⓘ
surface form:
Marine Forces Reserve
|
| theater |
Pacific War
ⓘ
surface form:
Pacific Theater of Operations
|
| type | reserve division ⓘ |
| worldWarIIStatus | active combat division ⓘ |
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: 4th Marine Division Description of subject: The 4th Marine Division is a United States Marine Corps infantry division renowned for its pivotal amphibious assaults in the Pacific Theater during World War II, including the capture of Iwo Jima.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
4th Marine Division (United States)
this entity surface form:
4th Marine Division (elements)
this entity surface form:
U.S. 4th Marine Division
this entity surface form:
U.S. 4th Marine Division