Triple

T14123700
Position Surface form Disambiguated ID Type / Status
Subject Old Melones Dam E339968 entity
Predicate hasReservoir P1025 FINISHED
Object Old Melones Reservoir
Old Melones Reservoir was a former man-made lake on the Stanislaus River in California that was inundated and replaced by the larger New Melones Lake following construction of New Melones Dam.
E1132789 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: Old Melones Reservoir | Statement: [Old Melones Dam, hasReservoir, Old Melones Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Old Melones Reservoir
Context triple: [Old Melones Dam, hasReservoir, Old Melones Reservoir]
  • A. Alcova Reservoir
    Alcova Reservoir is a man-made lake in central Wyoming popular for fishing, boating, and other water recreation, created by damming the North Platte River.
  • B. Crystal Springs Reservoir
    Crystal Springs Reservoir is a large artificial lake system on the San Francisco Peninsula that serves as a major drinking water source and scenic open-space area for the region.
  • C. Merrill Creek Reservoir
    Merrill Creek Reservoir is a man-made lake and wildlife habitat in northwestern New Jersey, known for fishing, hiking, and scenic natural surroundings.
  • D. La Mesa Reservoir
    La Mesa Reservoir is a major water storage facility in the Philippines that supplies potable water to Metro Manila and is located within the protected La Mesa Watershed.
  • E. Stillwater Reservoir
    Stillwater Reservoir is a large, remote man-made lake in the western Adirondack Mountains of New York, popular for boating, fishing, and backcountry 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: Old Melones Reservoir
Triple: [Old Melones Dam, hasReservoir, Old Melones Reservoir]
Generated description
Old Melones Reservoir was a former man-made lake on the Stanislaus River in California that was inundated and replaced by the larger New Melones Lake following construction of New Melones Dam.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Old Melones Reservoir
Target entity description: Old Melones Reservoir was a former man-made lake on the Stanislaus River in California that was inundated and replaced by the larger New Melones Lake following construction of New Melones Dam.
  • A. Alcova Reservoir
    Alcova Reservoir is a man-made lake in central Wyoming popular for fishing, boating, and other water recreation, created by damming the North Platte River.
  • B. Crystal Springs Reservoir
    Crystal Springs Reservoir is a large artificial lake system on the San Francisco Peninsula that serves as a major drinking water source and scenic open-space area for the region.
  • C. Merrill Creek Reservoir
    Merrill Creek Reservoir is a man-made lake and wildlife habitat in northwestern New Jersey, known for fishing, hiking, and scenic natural surroundings.
  • D. La Mesa Reservoir
    La Mesa Reservoir is a major water storage facility in the Philippines that supplies potable water to Metro Manila and is located within the protected La Mesa Watershed.
  • E. Stillwater Reservoir
    Stillwater Reservoir is a large, remote man-made lake in the western Adirondack Mountains of New York, popular for boating, fishing, and backcountry 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_69d81c6a95b481909e39111e0c1f31ee completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de6095548881908a9e66adccca92d2 completed April 14, 2026, 3:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69fe9db6187c8190969b035bc2813413 completed May 9, 2026, 2:36 a.m.
NEDg Description generation batch_69fe9e41de7c8190a2c2ce525d04fb49 completed May 9, 2026, 2:38 a.m.
NED2 Entity disambiguation (via description) batch_69fe9edd6fac8190907cdadb0de02d63 completed May 9, 2026, 2:41 a.m.
Created at: April 9, 2026, 10:22 p.m.