Triple
T20088634
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shay locomotive |
E496204
|
entity |
| Predicate | isPreservedAt |
P2249
|
FINISHED |
| Object | Roaring Camp and Big Trees Narrow Gauge Railroad |
—
|
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: Roaring Camp and Big Trees Narrow Gauge Railroad | Statement: [Shay locomotive, isPreservedAt, Roaring Camp and Big Trees Narrow Gauge Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Roaring Camp and Big Trees Narrow Gauge Railroad Context triple: [Shay locomotive, isPreservedAt, Roaring Camp and Big Trees Narrow Gauge Railroad]
-
A.
Roaring Camp & Big Trees Narrow Gauge Railroad
chosen
Roaring Camp & Big Trees Narrow Gauge Railroad is a historic tourist railway in the redwood forests near Felton, California, offering scenic steam train rides through the Santa Cruz Mountains.
-
B.
Redwood Valley Railway
Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
-
C.
Calico Railroad
Calico Railroad is a themed narrow-gauge train attraction that recreates an Old West mining railroad experience for guests.
-
D.
Yosemite Mountain Sugar Pine Railroad
Yosemite Mountain Sugar Pine Railroad is a historic narrow-gauge tourist railway near Yosemite National Park that offers scenic steam train rides through the Sierra Nevada forest.
-
E.
Cass Scenic Railroad
Cass Scenic Railroad is a historic heritage railway in West Virginia that operates restored steam-driven logging trains through the mountains as a popular tourist attraction.
- 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_69da626eee3881909f3454986d4a6511 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e6655d65a88190a510132f36341b6c |
completed | April 20, 2026, 5:41 p.m. |
Created at: April 11, 2026, 11:17 p.m.