Triple
T8514054
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metrolink Ventura County Line |
E201527
|
entity |
| Predicate | usesRailInfrastructure |
P15040
|
FINISHED |
| Object | Union Pacific Coast Line |
E428219
|
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: Union Pacific Coast Line | Statement: [Metrolink Ventura County Line, usesRailInfrastructure, Union Pacific Coast Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Pacific Coast Line Context triple: [Metrolink Ventura County Line, usesRailInfrastructure, Union Pacific Coast Line]
-
A.
Southern Pacific Railroad
Southern Pacific Railroad was a major American railroad company that operated extensive rail networks across the western and southwestern United States from the 19th to the late 20th century.
-
B.
Union Pacific Railroad
Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
-
C.
Union Pacific North Line
The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
-
D.
Union Pacific Northwest Line
The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
-
E.
Union Pacific Railroad Coast Subdivision
chosen
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
- 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_69ca8320e5748190ac2c585a0bba8193 |
completed | March 30, 2026, 2:05 p.m. |
| NER | Named-entity recognition | batch_69cbe60e12848190a4a3dfa457aef275 |
completed | March 31, 2026, 3:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cecc53555c8190b910b3220bd701b4 |
completed | April 2, 2026, 8:06 p.m. |
Created at: March 30, 2026, 6:15 p.m.