Triple
T22123119
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hetch Hetchy Regional Water System |
E546722
|
entity |
| Predicate | usesReservoir |
P107038
|
FINISHED |
| Object |
San Andreas Reservoir
San Andreas Reservoir is a man-made lake on the San Francisco Peninsula that serves as a major drinking water storage facility for the San Francisco Bay Area.
|
E1525352
|
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: San Andreas Reservoir | Statement: [Hetch Hetchy Regional Water System, usesReservoir, San Andreas Reservoir]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Andreas Reservoir Context triple: [Hetch Hetchy Regional Water System, usesReservoir, San Andreas Reservoir]
-
A.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
B.
El Capitan Reservoir
El Capitan Reservoir is a large man-made lake in San Diego County, California, primarily used for municipal water supply and recreational activities such as fishing and boating.
-
C.
Rampart Reservoir
Rampart Reservoir is a popular high-altitude lake in Colorado known for fishing, boating, and scenic outdoor recreation near the Pikes Peak region.
-
D.
Briones Reservoir
Briones Reservoir is a man-made lake in Contra Costa County, California, used for water supply and recreational activities such as rowing.
-
E.
Stevens Creek Reservoir
Stevens Creek Reservoir is an artificial lake in Santa Clara County, California, used for water storage and recreation such as fishing, boating, and hiking.
- 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: San Andreas Reservoir Triple: [Hetch Hetchy Regional Water System, usesReservoir, San Andreas Reservoir]
Generated description
San Andreas Reservoir is a man-made lake on the San Francisco Peninsula that serves as a major drinking water storage facility for the San Francisco Bay Area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Andreas Reservoir Target entity description: San Andreas Reservoir is a man-made lake on the San Francisco Peninsula that serves as a major drinking water storage facility for the San Francisco Bay Area.
-
A.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
B.
El Capitan Reservoir
El Capitan Reservoir is a large man-made lake in San Diego County, California, primarily used for municipal water supply and recreational activities such as fishing and boating.
-
C.
Rampart Reservoir
Rampart Reservoir is a popular high-altitude lake in Colorado known for fishing, boating, and scenic outdoor recreation near the Pikes Peak region.
-
D.
Briones Reservoir
Briones Reservoir is a man-made lake in Contra Costa County, California, used for water supply and recreational activities such as rowing.
-
E.
Stevens Creek Reservoir
Stevens Creek Reservoir is an artificial lake in Santa Clara County, California, used for water storage and recreation such as fishing, boating, and hiking.
- 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_69e11e39bf348190b541bfa16a7b71e0 |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f1297f3fb48190b6aaca18b40c37ab |
completed | April 28, 2026, 9:41 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0aae5b77bc819086562d9beb273ec2 |
completed | May 18, 2026, 6:14 a.m. |
| NEDg | Description generation | batch_6a0aaf98f8548190b046af768e1d2beb |
completed | May 18, 2026, 6:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0aaff022608190be73f127ee44d7d9 |
completed | May 18, 2026, 6:21 a.m. |
Created at: April 16, 2026, 8:31 p.m.