Triple

T15029411

Position	Surface form	Disambiguated ID	Type / Status
Subject	Lanzhou railway station	`E378302`	entity
Predicate	operator	`P179`	FINISHED
Object	China Railway Lanzhou Group China Railway Lanzhou Group is a regional subsidiary of China State Railway Group responsible for managing and operating railway services and infrastructure in the Lanzhou and broader northwestern China area.	`E1133992`	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: China Railway Lanzhou Group | Statement: [Lanzhou railway station, operator, China Railway Lanzhou Group]

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

Target entity: China Railway Lanzhou Group
Context triple: [Lanzhou railway station, operator, China Railway Lanzhou Group]

A. China Railway Xi’an Group
China Railway Xi’an Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in and around Xi’an and parts of northwestern China.
B. China Railway Beijing Group
China Railway Beijing Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services and infrastructure in the Beijing-Tianjin-Hebei area.
C. China Railway Zhengzhou Group
China Railway Zhengzhou Group is a regional subsidiary of China Railway responsible for operating and managing railway services and infrastructure centered around Zhengzhou in central China.
D. China Railway Shanghai Group
China Railway Shanghai Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in the Shanghai and surrounding eastern China area.
E. China Railway Chengdu Group
China Railway Chengdu Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in the southwest of China, including parts of Sichuan and Chongqing.
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: China Railway Lanzhou Group
Triple: [Lanzhou railway station, operator, China Railway Lanzhou Group]

Generated description

China Railway Lanzhou Group is a regional subsidiary of China State Railway Group responsible for managing and operating railway services and infrastructure in the Lanzhou and broader northwestern China area.

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

Target entity: China Railway Lanzhou Group
Target entity description: China Railway Lanzhou Group is a regional subsidiary of China State Railway Group responsible for managing and operating railway services and infrastructure in the Lanzhou and broader northwestern China area.

A. China Railway Xi’an Group
China Railway Xi’an Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in and around Xi’an and parts of northwestern China.
B. China Railway Beijing Group
China Railway Beijing Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services and infrastructure in the Beijing-Tianjin-Hebei area.
C. China Railway Zhengzhou Group
China Railway Zhengzhou Group is a regional subsidiary of China Railway responsible for operating and managing railway services and infrastructure centered around Zhengzhou in central China.
D. China Railway Shanghai Group
China Railway Shanghai Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in the Shanghai and surrounding eastern China area.
E. China Railway Chengdu Group
China Railway Chengdu Group is a regional subsidiary of China State Railway Group responsible for operating and managing railway services in the southwest of China, including parts of Sichuan and Chongqing.
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_69d85cd46b2c819090d054c27787f677`	completed	April 10, 2026, 2:13 a.m.
NER	Named-entity recognition	`batch_69ded7e0e8c88190ac6f5786b4d4040f`	completed	April 15, 2026, 12:12 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69fe9dd967588190821cf47e9734db21`	completed	May 9, 2026, 2:37 a.m.
NEDg	Description generation	`batch_69fe9e5dbbe0819084567688758b0245`	completed	May 9, 2026, 2:39 a.m.
NED2	Entity disambiguation (via description)	`batch_69fe9eedca1481908ce438991184d62e`	completed	May 9, 2026, 2:41 a.m.

Created at: April 10, 2026, 2:59 a.m.