Triple
T22004731
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Pacific Railroad Martinez Subdivision |
E543421
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Union Pacific Railroad network in California |
—
|
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: Union Pacific Railroad network in California | Statement: [Union Pacific Railroad Martinez Subdivision, partOf, Union Pacific Railroad network in California]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Pacific Railroad network in California Context triple: [Union Pacific Railroad Martinez Subdivision, partOf, Union Pacific Railroad network in California]
-
A.
California rail network
The California rail network is the statewide system of passenger and freight rail lines that connects major cities, regions, and corridors such as the Altamont Corridor across California.
-
B.
Southern Pacific main line in California’s Central Valley
The Southern Pacific main line in California’s Central Valley was a major north–south railroad corridor that formed the backbone of freight and passenger rail service through the state’s agricultural heartland.
-
C.
Southern Pacific Siskiyou and Shasta routes
The Southern Pacific Siskiyou and Shasta routes were mountainous mainlines in Oregon and Northern California known for their steep grades, dramatic scenery, and heavy steam locomotive operations.
-
D.
California Western Railroad
California Western Railroad is a historic short-line railway in Northern California, best known for its scenic "Skunk Train" excursions through the redwood forests between Willits and Fort Bragg.
-
E.
Union Pacific Railroad Fresno Subdivision
The Union Pacific Railroad Fresno Subdivision is a key freight and passenger rail corridor in California’s Central Valley that carries both Union Pacific trains and Altamont Corridor Express commuter services.
- 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: Union Pacific Railroad network in California Target entity description: The Union Pacific Railroad network in California is an extensive freight rail system spanning the state, connecting major ports, industrial centers, and inland hubs as part of Union Pacific’s western U.S. operations.
-
A.
California rail network
The California rail network is the statewide system of passenger and freight rail lines that connects major cities, regions, and corridors such as the Altamont Corridor across California.
-
B.
Southern Pacific main line in California’s Central Valley
The Southern Pacific main line in California’s Central Valley was a major north–south railroad corridor that formed the backbone of freight and passenger rail service through the state’s agricultural heartland.
-
C.
Southern Pacific Siskiyou and Shasta routes
The Southern Pacific Siskiyou and Shasta routes were mountainous mainlines in Oregon and Northern California known for their steep grades, dramatic scenery, and heavy steam locomotive operations.
-
D.
California Western Railroad
California Western Railroad is a historic short-line railway in Northern California, best known for its scenic "Skunk Train" excursions through the redwood forests between Willits and Fort Bragg.
-
E.
Union Pacific Railroad Fresno Subdivision
chosen
The Union Pacific Railroad Fresno Subdivision is a key freight and passenger rail corridor in California’s Central Valley that carries both Union Pacific trains and Altamont Corridor Express commuter services.
- F. None of above.
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_69e11e2db934819095556760c7d85e4d |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f1276d81e4819083a40e51249e7fd7 |
completed | April 28, 2026, 9:32 p.m. |
Created at: April 16, 2026, 8:20 p.m.