Triple
T22161673
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sacramento Northern Railway |
E547684
|
entity |
| Predicate | notableRoute |
P22
|
FINISHED |
| Object | Sacramento–Chico line |
—
|
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: Sacramento–Chico line | Statement: [Sacramento Northern Railway, notableRoute, Sacramento–Chico line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sacramento–Chico line Context triple: [Sacramento Northern Railway, notableRoute, Sacramento–Chico line]
-
A.
East Bay–Central Valley rail corridor
The East Bay–Central Valley rail corridor is a major freight and passenger rail route linking California’s San Francisco Bay Area with the Central Valley through the East Bay.
-
B.
Siskiyou Line
The Siskiyou Line is a historic north–south railroad route crossing the Siskiyou Mountains between Oregon and California, long used for freight service through this rugged terrain.
-
C.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
-
D.
San Francisco–San Jose rail corridor
The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
-
E.
Sacramento Valley Railroad
The Sacramento Valley Railroad was one of California’s earliest railroads, built in the 1850s to connect Sacramento with nearby mining regions during the Gold Rush era.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sacramento–Chico line Target entity description: The Sacramento–Chico line was an interurban electric railway route in Northern California that connected Sacramento with Chico as part of the Sacramento Northern Railway system.
-
A.
East Bay–Central Valley rail corridor
The East Bay–Central Valley rail corridor is a major freight and passenger rail route linking California’s San Francisco Bay Area with the Central Valley through the East Bay.
-
B.
Siskiyou Line
The Siskiyou Line is a historic north–south railroad route crossing the Siskiyou Mountains between Oregon and California, long used for freight service through this rugged terrain.
-
C.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
-
D.
San Francisco–San Jose rail corridor
The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
-
E.
Sacramento Valley Railroad
The Sacramento Valley Railroad was one of California’s earliest railroads, built in the 1850s to connect Sacramento with nearby mining regions during the Gold Rush era.
- F. None of above. chosen
Provenance (2 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_69e11e3c4c5c81908d336165816b12e0 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f12a2d8064819094d27ef9f15c6a1f |
completed | April 28, 2026, 9:44 p.m. |
Created at: April 16, 2026, 8:34 p.m.