Triple

T20209185
Position Surface form Disambiguated ID Type / Status
Subject Río Grijalva E493440 entity
Predicate formsReservoir P11309 FINISHED
Object Presa La Angostura
Presa La Angostura is a major hydroelectric reservoir and dam on the Grijalva River in Chiapas, Mexico, known for its significant role in the country’s power generation and water management.
 E1422877 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: Presa La Angostura | Statement: [Río Grijalva, formsReservoir, Presa La Angostura]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Presa La Angostura
Context triple: [Río Grijalva, formsReservoir, Presa La Angostura]
  • A. Presa Palo Bolero
    Presa Palo Bolero is a reservoir located in the municipality of Puente de Ixtla in the Mexican state of Morelos, used primarily for irrigation and local water management.
  • B. Presa Miguel Alemán
    Presa Miguel Alemán is a large hydroelectric and irrigation dam and reservoir located in the state of Oaxaca, Mexico.
  • C. Embalse de Guri
    Embalse de Guri is one of the world’s largest artificial lakes, formed by the Guri Dam on the Caroní River in Venezuela and serving as a major source of hydroelectric power for the country.
  • D. Presa Lázaro Cárdenas
    Presa Lázaro Cárdenas is a major Mexican dam and reservoir on the Nazas River, built primarily for irrigation, flood control, and regional water supply.
  • E. Presa El Rodeo
    Presa El Rodeo is a reservoir located in the municipality of Puente de Ixtla in the Mexican state of Morelos, used primarily for irrigation, fishing, and local recreation.
  • 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: Presa La Angostura
Triple: [Río Grijalva, formsReservoir, Presa La Angostura]
Generated description
Presa La Angostura is a major hydroelectric reservoir and dam on the Grijalva River in Chiapas, Mexico, known for its significant role in the country’s power generation and water management.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Presa La Angostura
Target entity description: Presa La Angostura is a major hydroelectric reservoir and dam on the Grijalva River in Chiapas, Mexico, known for its significant role in the country’s power generation and water management.
  • A. Presa Palo Bolero
    Presa Palo Bolero is a reservoir located in the municipality of Puente de Ixtla in the Mexican state of Morelos, used primarily for irrigation and local water management.
  • B. Presa Miguel Alemán
    Presa Miguel Alemán is a large hydroelectric and irrigation dam and reservoir located in the state of Oaxaca, Mexico.
  • C. Embalse de Guri
    Embalse de Guri is one of the world’s largest artificial lakes, formed by the Guri Dam on the Caroní River in Venezuela and serving as a major source of hydroelectric power for the country.
  • D. Presa Lázaro Cárdenas
    Presa Lázaro Cárdenas is a major Mexican dam and reservoir on the Nazas River, built primarily for irrigation, flood control, and regional water supply.
  • E. Presa El Rodeo
    Presa El Rodeo is a reservoir located in the municipality of Puente de Ixtla in the Mexican state of Morelos, used primarily for irrigation, fishing, and local recreation.
  • 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_69da6269614c8190bb40475d9d477358 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66d94999c8190b67051cb0acea213 completed April 20, 2026, 6:16 p.m.
NED1 Entity disambiguation (via context triple) batch_6a085a13ad708190bcbc91babdc4085b completed May 16, 2026, 11:50 a.m.
NEDg Description generation batch_6a085c72c81c8190bbe3c42b5832900c completed May 16, 2026, noon
NED2 Entity disambiguation (via description) batch_6a085cea59008190904995df11f6578d completed May 16, 2026, 12:02 p.m.
Created at: April 11, 2026, 11:38 p.m.