Triple

T4674769
Position Surface form Disambiguated ID Type / Status
Subject Columbia River estuary E103651 entity
Predicate hasFeature P182 FINISHED
Object Columbia River Bar
The Columbia River Bar is a notoriously dangerous sandbar and shipping passage at the mouth of the Columbia River, often called the "Graveyard of the Pacific" due to its treacherous waves and frequent shipwrecks.
E460946 NE FINISHED

How this triple was built (4 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: Columbia River Bar | Statement: [Columbia River estuary, hasFeature, Columbia River Bar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Columbia River Bar
Context triple: [Columbia River estuary, hasFeature, Columbia River Bar]
  • A. Second Narrows
    Second Narrows is a geographic strait or narrow water passage, known in Spanish as "Segunda Angostura," typically referring to a constricted section of a larger waterway.
  • B. Cape Disappointment
    Cape Disappointment is a rugged headland on the Pacific coast of Washington State, known for its historic lighthouse, treacherous waters at the mouth of the Columbia River, and role in the Lewis and Clark Expedition.
  • C. Tongass Narrows
    Tongass Narrows is a coastal waterway in southeastern Alaska known for its busy marine traffic, seaplane operations, and role as the main channel adjacent to the city of Ketchikan.
  • D. Celilo Falls
    Celilo Falls was a major Native American fishing and trading site on the Columbia River in the Pacific Northwest, renowned for its powerful rapids and rich salmon runs before being inundated by dam construction.
  • E. Mather Gorge
    Mather Gorge is a dramatic, narrow canyon on the Potomac River known for its steep cliffs, powerful rapids, and scenic views near Great Falls.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Columbia River Bar
Triple: [Columbia River estuary, hasFeature, Columbia River Bar]
Generated description
The Columbia River Bar is a notoriously dangerous sandbar and shipping passage at the mouth of the Columbia River, often called the "Graveyard of the Pacific" due to its treacherous waves and frequent shipwrecks.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Columbia River Bar
Target entity description: The Columbia River Bar is a notoriously dangerous sandbar and shipping passage at the mouth of the Columbia River, often called the "Graveyard of the Pacific" due to its treacherous waves and frequent shipwrecks.
  • A. Second Narrows
    Second Narrows is a geographic strait or narrow water passage, known in Spanish as "Segunda Angostura," typically referring to a constricted section of a larger waterway.
  • B. Cape Disappointment
    Cape Disappointment is a rugged headland on the Pacific coast of Washington State, known for its historic lighthouse, treacherous waters at the mouth of the Columbia River, and role in the Lewis and Clark Expedition.
  • C. Tongass Narrows
    Tongass Narrows is a coastal waterway in southeastern Alaska known for its busy marine traffic, seaplane operations, and role as the main channel adjacent to the city of Ketchikan.
  • D. Celilo Falls
    Celilo Falls was a major Native American fishing and trading site on the Columbia River in the Pacific Northwest, renowned for its powerful rapids and rich salmon runs before being inundated by dam construction.
  • E. Mather Gorge
    Mather Gorge is a dramatic, narrow canyon on the Potomac River known for its steep cliffs, powerful rapids, and scenic views near Great Falls.
  • F. None of above. chosen

Provenance (5 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_69bd43dda32c8190938b37744ca270fc completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd63544f68819084311416402696b0 completed March 20, 2026, 3:10 p.m.
NED1 Entity disambiguation (via context triple) batch_69be039896448190bdfd3a6cb76a8fbe completed March 21, 2026, 2:34 a.m.
NEDg Description generation batch_69be055390c08190a85f92aec34b390a completed March 21, 2026, 2:41 a.m.
NED2 Entity disambiguation (via description) batch_69be05d5bd008190bd94bd70092e8dfd completed March 21, 2026, 2:43 a.m.
Created at: March 20, 2026, 1:15 p.m.