Triple
T8068551
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Pacific Railroad mainline in the Columbia River Gorge |
E188306
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
UP Portland Subdivision
The UP Portland Subdivision is a key Union Pacific Railroad route running through the Columbia River Gorge, carrying significant freight traffic in the Pacific Northwest.
|
E708947
|
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: UP Portland Subdivision | Statement: [Union Pacific Railroad mainline in the Columbia River Gorge, partOf, UP Portland Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: UP Portland Subdivision Context triple: [Union Pacific Railroad mainline in the Columbia River Gorge, partOf, UP Portland Subdivision]
-
A.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
-
B.
CSX Capital Subdivision
CSX Capital Subdivision is a CSX Transportation rail line in Maryland that serves as a key freight and commuter corridor between Washington, D.C., and Baltimore.
-
C.
Mohawk Subdivision
The Mohawk Subdivision is a key railroad line in upstate New York that forms part of the main passenger and freight corridor between Albany and western New York.
-
D.
BNSF Seattle Subdivision
The BNSF Seattle Subdivision is a major freight and passenger rail corridor in the Seattle area, forming part of BNSF Railway’s main line through the Pacific Northwest.
-
E.
Portland & Western Railroad freight corridor
The Portland & Western Railroad freight corridor is a regional rail line in Oregon primarily used for freight transport that also accommodates the WES Commuter Rail service between Beaverton and Wilsonville.
- 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: UP Portland Subdivision Triple: [Union Pacific Railroad mainline in the Columbia River Gorge, partOf, UP Portland Subdivision]
Generated description
The UP Portland Subdivision is a key Union Pacific Railroad route running through the Columbia River Gorge, carrying significant freight traffic in the Pacific Northwest.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: UP Portland Subdivision Target entity description: The UP Portland Subdivision is a key Union Pacific Railroad route running through the Columbia River Gorge, carrying significant freight traffic in the Pacific Northwest.
-
A.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
-
B.
CSX Capital Subdivision
CSX Capital Subdivision is a CSX Transportation rail line in Maryland that serves as a key freight and commuter corridor between Washington, D.C., and Baltimore.
-
C.
Mohawk Subdivision
The Mohawk Subdivision is a key railroad line in upstate New York that forms part of the main passenger and freight corridor between Albany and western New York.
-
D.
BNSF Seattle Subdivision
The BNSF Seattle Subdivision is a major freight and passenger rail corridor in the Seattle area, forming part of BNSF Railway’s main line through the Pacific Northwest.
-
E.
Portland & Western Railroad freight corridor
The Portland & Western Railroad freight corridor is a regional rail line in Oregon primarily used for freight transport that also accommodates the WES Commuter Rail service between Beaverton and Wilsonville.
- 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_69ca82b42674819086840efea12478e5 |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb3ff8a4fc8190a97fc7111ca7ec4d |
completed | March 31, 2026, 3:31 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cc63e587908190980f1f026f4aa153 |
completed | April 1, 2026, 12:16 a.m. |
| NEDg | Description generation | batch_69cc651c5f788190908c6d84c58cba0f |
completed | April 1, 2026, 12:21 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69cc664d69a08190b92e34a0e1de48a7 |
completed | April 1, 2026, 12:26 a.m. |
Created at: March 30, 2026, 5:27 p.m.