Triple
T17646805
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro Red Line extension to North Hollywood |
E429378
|
entity |
| Predicate | tunnelUnder |
P64005
|
FINISHED |
| Object | Cahuenga Pass |
—
|
NE NERFINISHED |
How this triple was built (3 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: Cahuenga Pass | Statement: [Metro Red Line extension to North Hollywood, tunnelUnder, Cahuenga Pass]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cahuenga Pass Context triple: [Metro Red Line extension to North Hollywood, tunnelUnder, Cahuenga Pass]
-
A.
Cahuenga Pass
chosen
Cahuenga Pass is a major low-elevation mountain pass through the eastern Santa Monica Mountains in Los Angeles, serving as a key transportation corridor between Hollywood and the San Fernando Valley.
-
B.
Asuncion Pass
Asuncion Pass is a notable waterway or channel associated with the city of Sagay in the Philippines.
-
C.
Gaviota Pass
Gaviota Pass is a narrow coastal mountain pass in Santa Barbara County, California, that serves as a key transportation corridor between the Santa Ynez Valley and the Pacific coast.
-
D.
Pacheco Pass
Pacheco Pass is a mountain pass in central California that provides a key transportation route through the Diablo Range between the Santa Clara Valley and the San Joaquin Valley.
-
E.
Marias Pass
Marias Pass is a major mountain pass in the Rocky Mountains of northwestern Montana, known as a key rail and highway route through the Continental Divide near Glacier National Park.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: tunnelUnder Context triple: [Metro Red Line extension to North Hollywood, tunnelUnder, Cahuenga Pass]
-
A.
tunnelDugBy
Indicates that a tunnel was created or excavated by a particular agent or entity.
-
B.
partOfTunnel
Indicates that one entity forms a physical segment or component within the structure or extent of a tunnel.
-
C.
tunnels
chosen
Indicates that one entity passes through, under, or within another entity via a tunnel-like passage or structure.
-
D.
undergroundZone
Indicates that something is located in, associated with, or occurring within an area beneath the ground surface.
-
E.
hasRailwayTunnel
Indicates that one entity contains, includes, or is connected by a railway tunnel associated with the other entity.
- F. None of above.
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_69d889e2c2608190b762e76d9b2262f1 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e46e39937881909bb6a1792fff39a9 |
completed | April 19, 2026, 5:55 a.m. |
| PD | Predicate disambiguation | batch_69e3cddc87188190ac2f049b86038676 |
completed | April 18, 2026, 6:30 p.m. |
Created at: April 10, 2026, 6:04 a.m.