Triple
T11137218
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pacoima |
E263445
|
entity |
| Predicate | namedAfter |
P63
|
FINISHED |
| Object |
Pacoima Wash
Pacoima Wash is a tributary stream in the northeastern San Fernando Valley of Los Angeles County, California, that channels runoff from the San Gabriel Mountains into the Los Angeles River.
|
E908076
|
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: Pacoima Wash | Statement: [Pacoima, namedAfter, Pacoima Wash]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pacoima Wash Context triple: [Pacoima, namedAfter, Pacoima Wash]
-
A.
Verdugo Wash
Verdugo Wash is a concrete-lined flood control channel and seasonal stream in Los Angeles County that drains the Verdugo Mountains area before joining the Los Angeles River.
-
B.
San Andreas Creek
San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
-
C.
Meadow Valley Wash
Meadow Valley Wash is an intermittent stream and drainage system in southeastern Nevada that channels runoff through arid Lincoln County toward the Muddy River.
-
D.
Malibu Creek
Malibu Creek is a scenic waterway in the Santa Monica Mountains of Southern California that flows through rugged canyons to the Pacific Ocean near Malibu.
-
E.
Arroyo Seco
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.
- 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: Pacoima Wash Triple: [Pacoima, namedAfter, Pacoima Wash]
Generated description
Pacoima Wash is a tributary stream in the northeastern San Fernando Valley of Los Angeles County, California, that channels runoff from the San Gabriel Mountains into the Los Angeles River.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pacoima Wash Target entity description: Pacoima Wash is a tributary stream in the northeastern San Fernando Valley of Los Angeles County, California, that channels runoff from the San Gabriel Mountains into the Los Angeles River.
-
A.
Verdugo Wash
Verdugo Wash is a concrete-lined flood control channel and seasonal stream in Los Angeles County that drains the Verdugo Mountains area before joining the Los Angeles River.
-
B.
San Andreas Creek
San Andreas Creek is a watercourse in San Mateo County, California, that drains the eastern slopes of the Santa Cruz Mountains into the San Andreas Reservoir.
-
C.
Meadow Valley Wash
Meadow Valley Wash is an intermittent stream and drainage system in southeastern Nevada that channels runoff through arid Lincoln County toward the Muddy River.
-
D.
Malibu Creek
Malibu Creek is a scenic waterway in the Santa Monica Mountains of Southern California that flows through rugged canyons to the Pacific Ocean near Malibu.
-
E.
Arroyo Seco
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.
- 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_69d6aa9c0ba08190bbd19c217489b755 |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e85f2ea48190bf1ff63af1d7d236 |
completed | April 9, 2026, 5:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e442030b588190bc958030f30b648a |
completed | April 19, 2026, 2:46 a.m. |
| NEDg | Description generation | batch_69e44c09163481909d6a469b1e50b6ff |
completed | April 19, 2026, 3:29 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69e4519f4d408190be9863c72006ecad |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 8, 2026, 9:28 p.m.