Triple
T15729028
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Big Tujunga Canyon |
E381291
|
entity |
| Predicate | hasInfrastructure |
P2560
|
FINISHED |
| Object |
Big Tujunga Dam
Big Tujunga Dam is a concrete flood-control and water conservation dam in Los Angeles County, California, built across Big Tujunga Creek in the San Gabriel Mountains.
|
E1174064
|
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: Big Tujunga Dam | Statement: [Big Tujunga Canyon, hasInfrastructure, Big Tujunga Dam]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Big Tujunga Dam Context triple: [Big Tujunga Canyon, hasInfrastructure, Big Tujunga Dam]
-
A.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
B.
Indian Valley Dam
Indian Valley Dam is an earth-fill embankment dam in Lake County, California, that creates Indian Valley Reservoir for water storage, flood control, and recreation along Cache Creek.
-
C.
Pine Flat Dam
Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
-
D.
Santa Fe Dam
Santa Fe Dam is a large flood-control and water-conservation dam and recreation area located in the San Gabriel Valley of Los Angeles County, California.
-
E.
Castaic Dam
Castaic Dam is a large embankment dam in Los Angeles County, California, that forms Castaic Lake and plays a key role in water storage and hydroelectric power generation for Southern California.
- 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: Big Tujunga Dam Triple: [Big Tujunga Canyon, hasInfrastructure, Big Tujunga Dam]
Generated description
Big Tujunga Dam is a concrete flood-control and water conservation dam in Los Angeles County, California, built across Big Tujunga Creek in the San Gabriel Mountains.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Big Tujunga Dam Target entity description: Big Tujunga Dam is a concrete flood-control and water conservation dam in Los Angeles County, California, built across Big Tujunga Creek in the San Gabriel Mountains.
-
A.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
B.
Indian Valley Dam
Indian Valley Dam is an earth-fill embankment dam in Lake County, California, that creates Indian Valley Reservoir for water storage, flood control, and recreation along Cache Creek.
-
C.
Pine Flat Dam
Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
-
D.
Santa Fe Dam
Santa Fe Dam is a large flood-control and water-conservation dam and recreation area located in the San Gabriel Valley of Los Angeles County, California.
-
E.
Castaic Dam
Castaic Dam is a large embankment dam in Los Angeles County, California, that forms Castaic Lake and plays a key role in water storage and hydroelectric power generation for Southern California.
- 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_69d86d9cdb648190bf3171be0bd7d872 |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e04fb4cc0081909efe330339474017 |
completed | April 16, 2026, 2:55 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff82fcb4e4819097bd0591bbcc3b71 |
completed | May 9, 2026, 6:54 p.m. |
| NEDg | Description generation | batch_69ff83ca33d08190816130bf2ea735df |
completed | May 9, 2026, 6:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ff846436e48190b711da134c9a3b81 |
completed | May 9, 2026, 7 p.m. |
Created at: April 10, 2026, 4:46 a.m.