Triple

T3646197

Position	Surface form	Disambiguated ID	Type / Status
Subject	Hammersmith, London, England	`E77307`	entity
Predicate	hasUndergroundStation	`P918`	FINISHED
Object	Hammersmith tube station (Piccadilly and District lines) Hammersmith tube station (Piccadilly and District lines) is a London Underground station in west London serving both the Piccadilly and District lines and providing a key interchange for commuters and travelers.	`E376343`	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: Hammersmith tube station (Piccadilly and District lines) | Statement: [Hammersmith, London, England, hasUndergroundStation, Hammersmith tube station (Piccadilly and District lines)]

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

Target entity: Hammersmith tube station (Piccadilly and District lines)
Context triple: [Hammersmith, London, England, hasUndergroundStation, Hammersmith tube station (Piccadilly and District lines)]

A. Hampstead tube station
Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
B. Earl's Court tube station
Earl's Court tube station is a major London Underground station in West London serving the District and Piccadilly lines and acting as a key interchange for passengers traveling through Kensington and beyond.
C. Mansion House Underground station
Mansion House Underground station is a London Underground station in the City of London served by the District and Circle lines.
D. Tottenham Court Road station
Tottenham Court Road station is a central London Underground station on the Central and Northern lines, located near Oxford Street and serving the West End.
E. Battersea Power Station Underground station
Battersea Power Station Underground station is a London Underground station on the Northern line extension serving the redeveloped Battersea Power Station area in south-west London.
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: Hammersmith tube station (Piccadilly and District lines)
Triple: [Hammersmith, London, England, hasUndergroundStation, Hammersmith tube station (Piccadilly and District lines)]

Generated description

Hammersmith tube station (Piccadilly and District lines) is a London Underground station in west London serving both the Piccadilly and District lines and providing a key interchange for commuters and travelers.

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

Target entity: Hammersmith tube station (Piccadilly and District lines)
Target entity description: Hammersmith tube station (Piccadilly and District lines) is a London Underground station in west London serving both the Piccadilly and District lines and providing a key interchange for commuters and travelers.

A. Hampstead tube station
Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
B. Earl's Court tube station
Earl's Court tube station is a major London Underground station in West London serving the District and Piccadilly lines and acting as a key interchange for passengers traveling through Kensington and beyond.
C. Mansion House Underground station
Mansion House Underground station is a London Underground station in the City of London served by the District and Circle lines.
D. Tottenham Court Road station
Tottenham Court Road station is a central London Underground station on the Central and Northern lines, located near Oxford Street and serving the West End.
E. Battersea Power Station Underground station
Battersea Power Station Underground station is a London Underground station on the Northern line extension serving the redeveloped Battersea Power Station area in south-west London.
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_69ad85de1b988190a45f8dbfebc806fc`	completed	March 8, 2026, 2:21 p.m.
NER	Named-entity recognition	`batch_69adc3895198819090a17a8894e91d00`	completed	March 8, 2026, 6:44 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b44f35985081909a499f9c1668b589`	completed	March 13, 2026, 5:53 p.m.
NEDg	Description generation	`batch_69b4520fb96481909f54af01fc4a3bbe`	completed	March 13, 2026, 6:06 p.m.
NED2	Entity disambiguation (via description)	`batch_69b45df65f5c8190a9f25e7da926222a`	completed	March 13, 2026, 6:56 p.m.

Created at: March 8, 2026, 3:24 p.m.