Triple
T20185479
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cumbres and Toltec Scenic Railroad |
E492844
|
entity |
| Predicate | follows |
P134
|
FINISHED |
| Object | former Denver and Rio Grande Western Railroad San Juan Extension |
—
|
NE NERFINISHED |
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: former Denver and Rio Grande Western Railroad San Juan Extension | Statement: [Cumbres and Toltec Scenic Railroad, follows, former Denver and Rio Grande Western Railroad San Juan Extension]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: former Denver and Rio Grande Western Railroad San Juan Extension Context triple: [Cumbres and Toltec Scenic Railroad, follows, former Denver and Rio Grande Western Railroad San Juan Extension]
-
A.
Leadville Colorado & Southern Railroad
The Leadville Colorado & Southern Railroad is a heritage tourist railway in Leadville, Colorado, offering scenic rides through the Rocky Mountains along historic narrow-gauge mining routes.
-
B.
Denver and Salt Lake Railway
The Denver and Salt Lake Railway was an early 20th-century Colorado railroad that sought to connect Denver with Salt Lake City across the Rocky Mountains, playing a key role in opening up mountain regions to transportation and commerce.
-
C.
St. Joseph and Denver City Railroad
The St. Joseph and Denver City Railroad was a 19th-century rail line that formed part of an important east–west route across the Great Plains, helping connect Midwestern communities to broader national rail networks.
-
D.
Carson and Colorado Railway
The Carson and Colorado Railway was a narrow-gauge railroad that operated in the late 19th and early 20th centuries, primarily serving remote mining regions in Nevada and eastern California.
-
E.
Denver and Rio Grande Western Railroad
chosen
The Denver and Rio Grande Western Railroad was a historic U.S. railroad known for its scenic mountain routes through Colorado and Utah and its role in transcontinental passenger and freight service.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69da6268a034819081cbd9ea5a1c9475 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e668f2c03c819096336462f59dba91 |
completed | April 20, 2026, 5:57 p.m. |
Created at: April 11, 2026, 11:36 p.m.