Triple

T6729992
Position Surface form Disambiguated ID Type / Status
Subject Operation Niagara E153609 entity
Predicate partOf P40 FINISHED
Object Battle of Khe Sanh E28777 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Battle of Khe Sanh | Statement: [Operation Niagara, partOf, Battle of Khe Sanh]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Battle of Khe Sanh
Context triple: [Operation Niagara, partOf, Battle of Khe Sanh]
  • A. Battle of Khe Sanh chosen
    The Battle of Khe Sanh was a major and protracted siege in early 1968 in which U.S. Marines and South Vietnamese forces defended a remote base against a large-scale North Vietnamese assault, becoming one of the most famous and controversial engagements of the Vietnam War.
  • B. Battle of Con Thien
    The Battle of Con Thien was a protracted and intense 1967 Vietnam War engagement near the Demilitarized Zone, marked by heavy artillery duels, siege-like conditions, and significant U.S. Marine and North Vietnamese casualties.
  • C. Battle of Phuoc Long
    The Battle of Phuoc Long was a pivotal 1974–1975 engagement in the Vietnam War in which North Vietnamese forces captured Phuoc Long Province, revealing the weakness of South Vietnamese defenses and foreshadowing the final offensive against Saigon.
  • D. Battle of Pleiku
    The Battle of Pleiku was a 1965 Viet Cong attack on a U.S. base in Vietnam’s Central Highlands that prompted major American escalation and the sustained bombing campaign known as Operation Rolling Thunder.
  • E. Battle of Xuan Loc
    The Battle of Xuan Loc was the last major engagement of the Vietnam War, where South Vietnamese forces mounted a final, intense defense against the advancing North Vietnamese Army before the fall of Saigon.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69c6880bdd68819097de8b6099992682 elicitation completed
NER batch_69c6d15591c8819082620d194eba3e9d ner completed
NED1 batch_69c742444c3081908121fb01c93551f0 ned_source_triple completed
Created at: March 27, 2026, 2:09 p.m.