Triple

T20160369

Position	Surface form	Disambiguated ID	Type / Status
Subject	Yukuhashi, Fukuoka	`E491686`	entity
Predicate	hasPrivateRailway	`P138892`	FINISHED
Object	Heisei Chikuho Railway Heisei Chikuho Railway is a Japanese private railway company operating local passenger rail services in Fukuoka Prefecture.	`E1434989`	NE FINISHED

How this triple was built (5 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: Heisei Chikuho Railway | Statement: [Yukuhashi, Fukuoka, hasPrivateRailway, Heisei Chikuho Railway]

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

Target entity: Heisei Chikuho Railway
Context triple: [Yukuhashi, Fukuoka, hasPrivateRailway, Heisei Chikuho Railway]

A. Matsuura Railway
Matsuura Railway is a Japanese regional railway company that operates local train services in Nagasaki and Saga Prefectures.
B. Shinano Railway
Shinano Railway is a regional Japanese railway company operating local passenger train services primarily within Nagano Prefecture.
C. Ohmi Railway
Ohmi Railway is a Japanese private railway company that operates local train services and related transportation in Shiga Prefecture.
D. Ise Railway
Ise Railway is a Japanese railway company operating local train services in Mie Prefecture, particularly serving the Suzuka area.
E. Keifuku Electric Railroad
Keifuku Electric Railroad is a Japanese private railway company in Kyoto best known for operating the Randen tram lines that serve popular sightseeing areas such as Arashiyama.
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: Heisei Chikuho Railway
Triple: [Yukuhashi, Fukuoka, hasPrivateRailway, Heisei Chikuho Railway]

Generated description

Heisei Chikuho Railway is a Japanese private railway company operating local passenger rail services in Fukuoka Prefecture.

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

Target entity: Heisei Chikuho Railway
Target entity description: Heisei Chikuho Railway is a Japanese private railway company operating local passenger rail services in Fukuoka Prefecture.

A. Matsuura Railway
Matsuura Railway is a Japanese regional railway company that operates local train services in Nagasaki and Saga Prefectures.
B. Shinano Railway
Shinano Railway is a regional Japanese railway company operating local passenger train services primarily within Nagano Prefecture.
C. Ohmi Railway
Ohmi Railway is a Japanese private railway company that operates local train services and related transportation in Shiga Prefecture.
D. Ise Railway
Ise Railway is a Japanese railway company operating local train services in Mie Prefecture, particularly serving the Suzuka area.
E. Keifuku Electric Railroad
Keifuku Electric Railroad is a Japanese private railway company in Kyoto best known for operating the Randen tram lines that serve popular sightseeing areas such as Arashiyama.
F. None of above. chosen

PD Predicate disambiguation gpt-5-mini-2025-08-07

Target predicate: hasPrivateRailway
Context triple: [Yukuhashi, Fukuoka, hasPrivateRailway, Heisei Chikuho Railway]

A. hasRail
Indicates that something is equipped with, includes, or is connected to a rail or rail system.
B. hasRailSystem
Indicates that an entity possesses or is served by a rail-based transportation system.
C. hasRailRoute
Indicates that there exists a rail-based transportation route or connection between the related entities.
D. hasRackRailway
Indicates that one entity possesses or includes a rack railway system connecting locations or operating within its area.
E. usesRailInfrastructureOf
Indicates that one entity operates on, accesses, or otherwise makes use of the rail infrastructure owned or managed by another entity.
F. None of above. chosen

Provenance (7 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_69da6266c6888190bc1a3ecf24814d34`	completed	April 11, 2026, 3:01 p.m.
NER	Named-entity recognition	`batch_69e667e37c8c8190827839291027d9e2`	completed	April 20, 2026, 5:52 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a08939c764081909c87a17a5973b5b4`	completed	May 16, 2026, 3:56 p.m.
NEDg	Description generation	`batch_6a0897a9967881909e83d9ee6d2c7f61`	completed	May 16, 2026, 4:13 p.m.
NED2	Entity disambiguation (via description)	`batch_6a08980689448190b7e9d5b039a580aa`	completed	May 16, 2026, 4:15 p.m.
PD	Predicate disambiguation	`batch_69e55b0c11cc8190836d1eee5945f000`	completed	April 19, 2026, 10:45 p.m.
PDg	Predicate description generation	`batch_69e56700b1a08190ace53cf95827d72d`	completed	April 19, 2026, 11:36 p.m.

Created at: April 11, 2026, 11:34 p.m.