Triple
T12179923
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago Basin |
E290189
|
entity |
| Predicate | accessedVia |
P1985
|
FINISHED |
| Object | Durango and Silverton Narrow Gauge Railroad |
E543419
|
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: Durango and Silverton Narrow Gauge Railroad | Statement: [Chicago Basin, accessedVia, Durango and Silverton Narrow Gauge Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Durango and Silverton Narrow Gauge Railroad Context triple: [Chicago Basin, accessedVia, Durango and Silverton Narrow Gauge Railroad]
-
A.
Durango and Silverton Narrow Gauge Railroad
chosen
The Durango and Silverton Narrow Gauge Railroad is a historic, steam-powered narrow-gauge tourist railway in Colorado that preserves and operates a scenic portion of the former Denver and Rio Grande Western Railroad line through the Rocky Mountains.
-
B.
Royal Gorge Route Railroad
The Royal Gorge Route Railroad is a scenic heritage railway in Colorado that offers passenger excursions through the dramatic Royal Gorge along the Arkansas River.
-
C.
Broadmoor Manitou and Pikes Peak Cog Railway
The Broadmoor Manitou and Pikes Peak Cog Railway is a historic cog railroad in Colorado that carries passengers from Manitou Springs to the summit of Pikes Peak, offering scenic mountain views along one of the highest cog railways in the world.
-
D.
Cumbres and Toltec Scenic Railroad
The Cumbres and Toltec Scenic Railroad is a historic narrow-gauge heritage railway running between Colorado and New Mexico, renowned for its preserved steam locomotives and dramatic Rocky Mountain scenery.
-
E.
Verde Canyon Railroad
Verde Canyon Railroad is a heritage scenic railway in Arizona that offers passenger excursions through the rugged and picturesque Verde Canyon along the Verde River.
- 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_69d6ab64de5881908d56eb7a75c6cc69 |
completed | April 8, 2026, 7:24 p.m. |
| NER | Named-entity recognition | batch_69d915fc451c819086a2a97967b82908 |
completed | April 10, 2026, 3:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f5f6ab19288190a882c842d74a2e30 |
completed | May 2, 2026, 1:05 p.m. |
Created at: April 8, 2026, 9:50 p.m.