Triple
T15421782
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Arroyo Seco in Pasadena parklands |
E369396
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Arroyo Seco watershed |
E75440
|
NE FINISHED |
How this triple was built (2 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: Arroyo Seco watershed | Statement: [Arroyo Seco in Pasadena parklands, partOf, Arroyo Seco watershed]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Arroyo Seco watershed Context triple: [Arroyo Seco in Pasadena parklands, partOf, Arroyo Seco watershed]
-
A.
Arroyo Seco
chosen
Arroyo Seco is a seasonal river and canyon in Los Angeles County, California, known for its historic role in regional water management, recreation, and as the route followed by the Arroyo Seco Parkway.
-
B.
Dominguez Watershed
The Dominguez Watershed is a drainage basin in southern Los Angeles County that collects urban runoff and stormwater from surrounding communities and channels it to the Pacific Ocean.
-
C.
Santa Monica Mountains watershed
The Santa Monica Mountains watershed is the network of streams, creeks, and drainage basins that collect and channel water from the Santa Monica Mountains to the Pacific Ocean, supporting diverse ecosystems and coastal habitats.
-
D.
Sespe Creek watershed
The Sespe Creek watershed is a largely undeveloped river basin in Southern California’s Transverse Ranges, known for its rugged canyons, diverse wildlife, and critical role in the conservation of the endangered California condor.
-
E.
San Francisquito Creek
San Francisquito Creek is a perennial stream on the San Francisco Peninsula that forms part of the boundary between San Mateo and Santa Clara counties and runs through Palo Alto and surrounding communities before emptying into San Francisco Bay.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d85a1849f48190bf898068b2806fae |
completed | April 10, 2026, 2:02 a.m. |
| NER | Named-entity recognition | batch_69e03ebe7b1081908e6b9e6e128a8d5d |
completed | April 16, 2026, 1:43 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffb0319f248190a37c9afa09c32428 |
completed | May 9, 2026, 10:07 p.m. |
Created at: April 10, 2026, 3:20 a.m.