Triple

T8773812

Position	Surface form	Disambiguated ID	Type / Status
Subject	Visakhapatnam railway station	`E208527`	entity
Predicate	isMajorStationOn	`P30882`	FINISHED
Object	Visakhapatnam–Vijayawada section The Visakhapatnam–Vijayawada section is a key railway corridor in the Indian state of Andhra Pradesh that connects the coastal cities of Visakhapatnam and Vijayawada and forms part of the busy Howrah–Chennai main line.	`E756267`	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: Visakhapatnam–Vijayawada section | Statement: [Visakhapatnam railway station, isMajorStationOn, Visakhapatnam–Vijayawada section]

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

Target entity: Visakhapatnam–Vijayawada section
Context triple: [Visakhapatnam railway station, isMajorStationOn, Visakhapatnam–Vijayawada section]

A. Guntur–Vijayawada section
The Guntur–Vijayawada section is a key railway line in Andhra Pradesh, India, connecting the major cities of Guntur and Vijayawada and serving as an important regional transport corridor.
B. Vijayawada–Guntakal section
The Vijayawada–Guntakal section is a key railway line in the Indian state of Andhra Pradesh that connects the major junctions of Vijayawada and Guntakal, forming an important route for both passenger and freight trains.
C. Guntur–Nallapadu–Guntakal section
The Guntur–Nallapadu–Guntakal section is a railway line in the Indian state of Andhra Pradesh that connects Guntur with Guntakal, serving as an important route for regional passenger and freight traffic.
D. Vijayawada–Gudur section
The Vijayawada–Gudur section is a major railway line in the Indian state of Andhra Pradesh that forms a key part of the Chennai–Howrah and Chennai–Delhi trunk routes, carrying heavy passenger and freight traffic along the east coast.
E. Guntur–Tenali section
The Guntur–Tenali section is a key railway line in Andhra Pradesh, India, connecting the cities of Guntur and Tenali and forming part of an important regional rail corridor.
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: Visakhapatnam–Vijayawada section
Triple: [Visakhapatnam railway station, isMajorStationOn, Visakhapatnam–Vijayawada section]

Generated description

The Visakhapatnam–Vijayawada section is a key railway corridor in the Indian state of Andhra Pradesh that connects the coastal cities of Visakhapatnam and Vijayawada and forms part of the busy Howrah–Chennai main line.

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

Target entity: Visakhapatnam–Vijayawada section
Target entity description: The Visakhapatnam–Vijayawada section is a key railway corridor in the Indian state of Andhra Pradesh that connects the coastal cities of Visakhapatnam and Vijayawada and forms part of the busy Howrah–Chennai main line.

A. Guntur–Vijayawada section
The Guntur–Vijayawada section is a key railway line in Andhra Pradesh, India, connecting the major cities of Guntur and Vijayawada and serving as an important regional transport corridor.
B. Vijayawada–Guntakal section
The Vijayawada–Guntakal section is a key railway line in the Indian state of Andhra Pradesh that connects the major junctions of Vijayawada and Guntakal, forming an important route for both passenger and freight trains.
C. Guntur–Nallapadu–Guntakal section
The Guntur–Nallapadu–Guntakal section is a railway line in the Indian state of Andhra Pradesh that connects Guntur with Guntakal, serving as an important route for regional passenger and freight traffic.
D. Vijayawada–Gudur section
The Vijayawada–Gudur section is a major railway line in the Indian state of Andhra Pradesh that forms a key part of the Chennai–Howrah and Chennai–Delhi trunk routes, carrying heavy passenger and freight traffic along the east coast.
E. Guntur–Tenali section
The Guntur–Tenali section is a key railway line in Andhra Pradesh, India, connecting the cities of Guntur and Tenali and forming part of an important regional rail corridor.
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_69ca835edb4481909b4aafb616dc5eb7`	completed	March 30, 2026, 2:06 p.m.
NER	Named-entity recognition	`batch_69cc5f2ef3288190988bd69e8a02e741`	completed	March 31, 2026, 11:56 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69cf51c760b48190b2138cd2861b2c61`	completed	April 3, 2026, 5:36 a.m.
NEDg	Description generation	`batch_69cf52f0886881909ceb9fbe54f84d11`	completed	April 3, 2026, 5:41 a.m.
NED2	Entity disambiguation (via description)	`batch_69cf53bc19fc81908f43c3fa29bae021`	completed	April 3, 2026, 5:44 a.m.

Created at: March 30, 2026, 6:41 p.m.