Triple

T18121906

Position	Surface form	Disambiguated ID	Type / Status
Subject	San Joaquin Valley transportation corridor	`E433758`	entity
Predicate	includesRailLine	`P848`	FINISHED
Object	BNSF Railway Stockton Subdivision BNSF Railway Stockton Subdivision is a major freight rail line in California’s San Joaquin Valley that forms part of a key north–south transportation corridor for agricultural and industrial goods.	`E1309564`	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 Railway Stockton Subdivision | Statement: [San Joaquin Valley transportation corridor, includesRailLine, BNSF Railway Stockton Subdivision]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: BNSF Railway Stockton Subdivision
Context triple: [San Joaquin Valley transportation corridor, includesRailLine, BNSF Railway Stockton Subdivision]

A. BNSF Railway Bakersfield Subdivision
The BNSF Railway Bakersfield Subdivision is a major freight rail line in California’s San Joaquin Valley that forms a key segment of BNSF’s north–south corridor through the region.
B. 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.
C. 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.
D. BNSF San Bernardino Subdivision
The BNSF San Bernardino Subdivision is a major freight rail line in Southern California operated by BNSF Railway, serving as a key corridor for transcontinental rail traffic.
E. Union Pacific Valley Subdivision
The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
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 Railway Stockton Subdivision
Triple: [San Joaquin Valley transportation corridor, includesRailLine, BNSF Railway Stockton Subdivision]

Generated description

BNSF Railway Stockton Subdivision is a major freight rail line in California’s San Joaquin Valley that forms part of a key north–south transportation corridor for agricultural and industrial goods.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: BNSF Railway Stockton Subdivision
Target entity description: BNSF Railway Stockton Subdivision is a major freight rail line in California’s San Joaquin Valley that forms part of a key north–south transportation corridor for agricultural and industrial goods.

A. BNSF Railway Bakersfield Subdivision
The BNSF Railway Bakersfield Subdivision is a major freight rail line in California’s San Joaquin Valley that forms a key segment of BNSF’s north–south corridor through the region.
B. 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.
C. 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.
D. BNSF San Bernardino Subdivision
The BNSF San Bernardino Subdivision is a major freight rail line in Southern California operated by BNSF Railway, serving as a key corridor for transcontinental rail traffic.
E. Union Pacific Valley Subdivision
The Union Pacific Valley Subdivision is a railroad line operated by Union Pacific that serves as a key freight corridor within its regional rail network.
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_69d8b909e8cc81908df4cc2b8ea6d11f`	completed	April 10, 2026, 8:47 a.m.
NER	Named-entity recognition	`batch_69e4ddea61bc8190af4b3efa2596b632`	completed	April 19, 2026, 1:51 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a038fadf97c8190b3c62e9ca89dc0cb`	completed	May 12, 2026, 8:38 p.m.
NEDg	Description generation	`batch_6a0391a92bd88190ba2bc79471a3ab55`	completed	May 12, 2026, 8:46 p.m.
NED2	Entity disambiguation (via description)	`batch_6a03922a2a148190917adab265da0e55`	completed	May 12, 2026, 8:48 p.m.

Created at: April 10, 2026, 10:28 a.m.