Triple

T15545580

Position	Surface form	Disambiguated ID	Type / Status
Subject	Blundellsands and Crosby railway station	`E370599`	entity
Predicate	lineSection	`P43954`	FINISHED
Object	Southport branch of the Merseyrail Northern Line The Southport branch of the Merseyrail Northern Line is a suburban electrified railway route in the Liverpool City Region that runs between central Liverpool and the coastal town of Southport, serving communities along the Sefton coastline.	`E1162982`	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: Southport branch of the Merseyrail Northern Line | Statement: [Blundellsands and Crosby railway station, lineSection, Southport branch of the Merseyrail Northern Line]

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

Target entity: Southport branch of the Merseyrail Northern Line
Context triple: [Blundellsands and Crosby railway station, lineSection, Southport branch of the Merseyrail Northern Line]

A. Ellesmere Port branch line
The Ellesmere Port branch line is a railway line in Cheshire, England, connecting Hooton to Ellesmere Port and forming part of the Merseyrail network.
B. New Brighton branch of the Wirral Line
The New Brighton branch of the Wirral Line is a suburban railway route on Merseyrail’s Wirral network that runs from central Liverpool to the coastal town of New Brighton.
C. Blackpool South branch line
The Blackpool South branch line is a railway route in Lancashire, England, providing local passenger services between Preston and the seaside resort area of Blackpool South.
D. Southport railway station
Southport railway station is a coastal terminus in Merseyside, England, serving as a key hub for commuter and leisure rail services, particularly on the Merseyrail network.
E. Southport light rail station
Southport light rail station is a public transport stop on the Gold Coast light rail network in Southport, Queensland, serving the busy commercial and retail precinct including Australia Fair Shopping Centre.
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: Southport branch of the Merseyrail Northern Line
Triple: [Blundellsands and Crosby railway station, lineSection, Southport branch of the Merseyrail Northern Line]

Generated description

The Southport branch of the Merseyrail Northern Line is a suburban electrified railway route in the Liverpool City Region that runs between central Liverpool and the coastal town of Southport, serving communities along the Sefton coastline.

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

Target entity: Southport branch of the Merseyrail Northern Line
Target entity description: The Southport branch of the Merseyrail Northern Line is a suburban electrified railway route in the Liverpool City Region that runs between central Liverpool and the coastal town of Southport, serving communities along the Sefton coastline.

A. Ellesmere Port branch line
The Ellesmere Port branch line is a railway line in Cheshire, England, connecting Hooton to Ellesmere Port and forming part of the Merseyrail network.
B. New Brighton branch of the Wirral Line
The New Brighton branch of the Wirral Line is a suburban railway route on Merseyrail’s Wirral network that runs from central Liverpool to the coastal town of New Brighton.
C. Blackpool South branch line
The Blackpool South branch line is a railway route in Lancashire, England, providing local passenger services between Preston and the seaside resort area of Blackpool South.
D. Southport railway station
Southport railway station is a coastal terminus in Merseyside, England, serving as a key hub for commuter and leisure rail services, particularly on the Merseyrail network.
E. Southport light rail station
Southport light rail station is a public transport stop on the Gold Coast light rail network in Southport, Queensland, serving the busy commercial and retail precinct including Australia Fair Shopping Centre.
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_69d85cc521a08190921fb50319dddc34`	completed	April 10, 2026, 2:13 a.m.
NER	Named-entity recognition	`batch_69e0443410408190a249889edcd9c599`	completed	April 16, 2026, 2:06 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69ff455a38188190a593c70be09d6103`	completed	May 9, 2026, 2:31 p.m.
NEDg	Description generation	`batch_69ff45dbc9dc8190b3cac64e4a418aa3`	completed	May 9, 2026, 2:34 p.m.
NED2	Entity disambiguation (via description)	`batch_69ff464571808190bfe7ef3a33d246f1`	completed	May 9, 2026, 2:35 p.m.

Created at: April 10, 2026, 4:07 a.m.