Triple
T4249016
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sounder commuter rail |
E95798
|
entity |
| Predicate | usesRailCorridor |
P24245
|
FINISHED |
| Object |
BNSF Scenic Subdivision
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
|
E434793
|
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: BNSF Scenic Subdivision | Statement: [Sounder commuter rail, usesRailCorridor, BNSF Scenic Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BNSF Scenic Subdivision Context triple: [Sounder commuter rail, usesRailCorridor, BNSF Scenic Subdivision]
-
A.
BNSF Railway Monticello Subdivision
The BNSF Railway Monticello Subdivision is a freight and passenger rail corridor in Minnesota that carries BNSF trains as well as Metro Transit's Northstar commuter rail service between Minneapolis and its northwestern suburbs.
-
B.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
C.
Union Pacific West Line
The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
-
D.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
-
E.
BNSF Southern Transcon
The BNSF Southern Transcon is a major high-capacity freight rail corridor across the southern United States, serving as one of BNSF Railway’s primary routes for transcontinental intermodal and merchandise traffic.
- 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: BNSF Scenic Subdivision Triple: [Sounder commuter rail, usesRailCorridor, BNSF Scenic Subdivision]
Generated description
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: BNSF Scenic Subdivision Target entity description: The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
-
A.
BNSF Railway Monticello Subdivision
The BNSF Railway Monticello Subdivision is a freight and passenger rail corridor in Minnesota that carries BNSF trains as well as Metro Transit's Northstar commuter rail service between Minneapolis and its northwestern suburbs.
-
B.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
C.
Union Pacific West Line
The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
-
D.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
-
E.
BNSF Southern Transcon
The BNSF Southern Transcon is a major high-capacity freight rail corridor across the southern United States, serving as one of BNSF Railway’s primary routes for transcontinental intermodal and merchandise traffic.
- 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_69b3453f759881909b91f01a1e82c036 |
completed | March 12, 2026, 10:59 p.m. |
| NER | Named-entity recognition | batch_69b34e9df10881908a2f039773f8afaa |
completed | March 12, 2026, 11:39 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5e4e3b6d8819099e8594dd9d0cd15 |
completed | March 14, 2026, 10:44 p.m. |
| NEDg | Description generation | batch_69b5e55785bc8190917ff2cd36ea08a9 |
completed | March 14, 2026, 10:46 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b5e5d8574c81909da3a91d9f927879 |
completed | March 14, 2026, 10:48 p.m. |
Created at: March 12, 2026, 11:06 p.m.