Triple
T9416360
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tehachapi, California |
E227029
|
entity |
| Predicate | hasRailService |
P782
|
FINISHED |
| Object | freight rail via Union Pacific Railroad |
E534835
|
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: freight rail via Union Pacific Railroad | Statement: [Tehachapi, California, hasRailService, freight rail via Union Pacific Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: freight rail via Union Pacific Railroad Context triple: [Tehachapi, California, hasRailService, freight rail via Union Pacific Railroad]
-
A.
Union Pacific mainline routes
Union Pacific mainline routes are the railroad’s primary high-capacity freight corridors that carry long-distance trains across its network, including through major facilities like Bailey Yard.
-
B.
Union Pacific Railroad line
chosen
The Union Pacific Railroad line is a major freight rail route in the western United States operated by Union Pacific Railroad, one of the largest railroad networks in North America.
-
C.
Union Pacific–Central Pacific rail connection
The Union Pacific–Central Pacific rail connection was the historic junction point in Utah where the first U.S. transcontinental railroad was completed in 1869, linking eastern and western rail networks.
-
D.
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.
-
E.
Transrail Freight
Transrail Freight was a British rail freight company that emerged from the privatization and restructuring of the former state-owned freight operations.
- 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_69ca84359e7c819091148ba4b670e436 |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd68c9917481909f793a2a9efb2a75 |
completed | April 1, 2026, 6:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d107baad74819090a746c06feb28ac |
completed | April 4, 2026, 12:44 p.m. |
Created at: March 30, 2026, 7:48 p.m.