Triple

T8206821
Position Surface form Disambiguated ID Type / Status
Subject Costa da Morte E191707 entity
Predicate historicalEvent P259 FINISHED
Object Prestige oil spill
The Prestige oil spill was a major environmental disaster in 2002, when the oil tanker Prestige sank off the coast of Galicia, Spain, releasing thousands of tons of fuel oil and severely polluting the surrounding marine and coastal ecosystems.
E719461 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: Prestige oil spill | Statement: [Costa da Morte, historicalEvent, Prestige oil spill]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Prestige oil spill
Context triple: [Costa da Morte, historicalEvent, Prestige oil spill]
  • A. Exxon Valdez oil spill
    The Exxon Valdez oil spill was a catastrophic 1989 environmental disaster in Alaska’s Prince William Sound, where a supertanker ran aground and released millions of gallons of crude oil, causing massive ecological and economic damage.
  • B. Deepwater Horizon oil spill
    The Deepwater Horizon oil spill was a massive 2010 offshore drilling disaster that released millions of barrels of oil into the Gulf of Mexico, causing one of the worst environmental catastrophes in U.S. history.
  • C. Torrey Canyon oil spill
    The Torrey Canyon oil spill was a catastrophic 1967 tanker disaster off the coast of Cornwall that released a massive amount of crude oil into the sea, becoming one of the first major environmental marine pollution crises and prompting significant changes in international maritime regulations.
  • D. 1969 Santa Barbara oil spill
    The 1969 Santa Barbara oil spill was a massive offshore drilling accident off the California coast that released millions of gallons of crude oil, devastating marine and coastal ecosystems and helping catalyze the modern U.S. environmental movement.
  • E. Exxon Valdez
    Exxon Valdez was a U.S. oil tanker infamous for causing one of the worst environmental disasters in history when it spilled millions of gallons of crude oil off the coast of Alaska in 1989.
  • 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: Prestige oil spill
Triple: [Costa da Morte, historicalEvent, Prestige oil spill]
Generated description
The Prestige oil spill was a major environmental disaster in 2002, when the oil tanker Prestige sank off the coast of Galicia, Spain, releasing thousands of tons of fuel oil and severely polluting the surrounding marine and coastal ecosystems.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Prestige oil spill
Target entity description: The Prestige oil spill was a major environmental disaster in 2002, when the oil tanker Prestige sank off the coast of Galicia, Spain, releasing thousands of tons of fuel oil and severely polluting the surrounding marine and coastal ecosystems.
  • A. Exxon Valdez oil spill
    The Exxon Valdez oil spill was a catastrophic 1989 environmental disaster in Alaska’s Prince William Sound, where a supertanker ran aground and released millions of gallons of crude oil, causing massive ecological and economic damage.
  • B. Deepwater Horizon oil spill
    The Deepwater Horizon oil spill was a massive 2010 offshore drilling disaster that released millions of barrels of oil into the Gulf of Mexico, causing one of the worst environmental catastrophes in U.S. history.
  • C. Torrey Canyon oil spill
    The Torrey Canyon oil spill was a catastrophic 1967 tanker disaster off the coast of Cornwall that released a massive amount of crude oil into the sea, becoming one of the first major environmental marine pollution crises and prompting significant changes in international maritime regulations.
  • D. 1969 Santa Barbara oil spill
    The 1969 Santa Barbara oil spill was a massive offshore drilling accident off the California coast that released millions of gallons of crude oil, devastating marine and coastal ecosystems and helping catalyze the modern U.S. environmental movement.
  • E. Exxon Valdez
    Exxon Valdez was a U.S. oil tanker infamous for causing one of the worst environmental disasters in history when it spilled millions of gallons of crude oil off the coast of Alaska in 1989.
  • 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_69ca82c7f3e08190857bf1fc63b2a10c completed March 30, 2026, 2:03 p.m.
NER Named-entity recognition batch_69cb726b520081908ce4a03bd14dfcdf completed March 31, 2026, 7:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69ccedda69148190b8c221221de5dae5 completed April 1, 2026, 10:05 a.m.
NEDg Description generation batch_69ccf1ba74548190831677bb126bea1a completed April 1, 2026, 10:21 a.m.
NED2 Entity disambiguation (via description) batch_69cd05c2059081908bd04ee4722f9aad completed April 1, 2026, 11:47 a.m.
Created at: March 30, 2026, 5:43 p.m.