Triple
T6959155
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sierra Railway of California |
E161322
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Jamestown locomotive roundhouse
The Jamestown locomotive roundhouse is a historic engine house and maintenance facility at the Sierra Railway in Jamestown, California, preserved today as part of Railtown 1897 State Historic Park.
|
E631447
|
NE FINISHED |
How this triple was built (4 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: Jamestown locomotive roundhouse | Statement: [Sierra Railway of California, hasPart, Jamestown locomotive roundhouse]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Jamestown locomotive roundhouse Context triple: [Sierra Railway of California, hasPart, Jamestown locomotive roundhouse]
-
A.
Mount Clare roundhouse
Mount Clare roundhouse is a historic railroad engine house in Baltimore, Maryland, notable as one of the oldest surviving roundhouse structures in the United States and a key landmark in early American railroading.
-
B.
Richmond Main Street Station
Richmond Main Street Station is a historic downtown Richmond rail hub that now serves as an Amtrak station and multimodal transportation center.
-
C.
Brunswick rail yard
Brunswick rail yard is a railway facility in Brunswick, Maine, used for storing, assembling, and servicing trains that operate through Brunswick station.
-
D.
Grosmont motive power depot
Grosmont motive power depot is a heritage railway locomotive maintenance and stabling facility serving the North Yorkshire Moors Railway in Grosmont, North Yorkshire, England.
-
E.
Chatham Railroad Museum
The Chatham Railroad Museum is a local history museum in Chatham, Massachusetts, dedicated to preserving and interpreting the town’s railroad heritage through exhibits, artifacts, and educational displays.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Jamestown locomotive roundhouse Triple: [Sierra Railway of California, hasPart, Jamestown locomotive roundhouse]
Generated description
The Jamestown locomotive roundhouse is a historic engine house and maintenance facility at the Sierra Railway in Jamestown, California, preserved today as part of Railtown 1897 State Historic Park.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Jamestown locomotive roundhouse Target entity description: The Jamestown locomotive roundhouse is a historic engine house and maintenance facility at the Sierra Railway in Jamestown, California, preserved today as part of Railtown 1897 State Historic Park.
-
A.
Mount Clare roundhouse
Mount Clare roundhouse is a historic railroad engine house in Baltimore, Maryland, notable as one of the oldest surviving roundhouse structures in the United States and a key landmark in early American railroading.
-
B.
Richmond Main Street Station
Richmond Main Street Station is a historic downtown Richmond rail hub that now serves as an Amtrak station and multimodal transportation center.
-
C.
Brunswick rail yard
Brunswick rail yard is a railway facility in Brunswick, Maine, used for storing, assembling, and servicing trains that operate through Brunswick station.
-
D.
Grosmont motive power depot
Grosmont motive power depot is a heritage railway locomotive maintenance and stabling facility serving the North Yorkshire Moors Railway in Grosmont, North Yorkshire, England.
-
E.
Chatham Railroad Museum
The Chatham Railroad Museum is a local history museum in Chatham, Massachusetts, dedicated to preserving and interpreting the town’s railroad heritage through exhibits, artifacts, and educational displays.
- F. None of above. chosen
Provenance (5 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_69c68852a9a0819097797e31d492e273 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6daedbb4c8190b46846fb1265b937 |
completed | March 27, 2026, 7:30 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c75893a4808190b94a70d8823a01d3 |
completed | March 28, 2026, 4:26 a.m. |
| NEDg | Description generation | batch_69c759d65a008190a6121949651dcd5c |
completed | March 28, 2026, 4:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c75a7a0af88190abf9d1dc4efd8b29 |
completed | March 28, 2026, 4:35 a.m. |
Created at: March 27, 2026, 2:29 p.m.