Triple
T19194415
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 2nd Battalion, 28th Marines |
E469927
|
entity |
| Predicate | engagement |
P1256
|
FINISHED |
| Object | Iwo Jima landings |
—
|
NE NERFINISHED |
How this triple was built (2 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Iwo Jima landings | Statement: [2nd Battalion, 28th Marines, engagement, Iwo Jima landings]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Iwo Jima landings Context triple: [2nd Battalion, 28th Marines, engagement, Iwo Jima landings]
-
A.
Battle of Iwo Jima
chosen
The Battle of Iwo Jima was a major 1945 Pacific campaign clash between the United States and Japan, famed for its brutal fighting and the iconic flag-raising on Mount Suribachi.
-
B.
Iwo Jima
Iwo Jima is a small volcanic island in the western Pacific Ocean, historically significant as the site of a major World War II battle between the United States and Japan.
-
C.
Moonsund amphibious operation
The Moonsund amphibious operation was a World War II Soviet naval and ground offensive in 1944 to capture the Moonsund (West Estonian) archipelago from German forces in the Baltic Sea.
-
D.
Inchon Landing
Inchon Landing was a pivotal 1950 amphibious assault led by UN forces under General Douglas MacArthur that reversed the course of the Korean War by recapturing Seoul and cutting North Korean supply lines.
-
E.
Battle of Tarawa
The Battle of Tarawa was a brutal 1943 Pacific island assault in which U.S. Marines fought heavily entrenched Japanese forces on the atoll of Betio, marking one of World War II’s first major amphibious invasions against a strongly defended beachhead.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d8dd0ad9088190a173b32657ae2e7a |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5f8a4d6b4819083fc5dd4dab05811 |
completed | April 20, 2026, 9:57 a.m. |
Created at: April 10, 2026, 12:07 p.m.