Triple

T25179197

Position	Surface form	Disambiguated ID	Type / Status
Subject	Midland Main Line (southern section via Thameslink)	`E630535`	entity
Predicate	hasKeyNode	`P18908`	FINISHED
Object	St Pancras Thameslink low-level platforms St Pancras Thameslink low-level platforms were the former subterranean Thameslink platforms at St Pancras in London, serving cross-London suburban and regional services before being replaced by the new St Pancras Thameslink (now St Pancras International Thameslink) station.	`E1665954`	NE FINISHED

How this triple was built (3 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: St Pancras Thameslink low-level platforms | Statement: [Midland Main Line (southern section via Thameslink), hasKeyNode, St Pancras Thameslink low-level platforms]

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: St Pancras Thameslink low-level platforms
Triple: [Midland Main Line (southern section via Thameslink), hasKeyNode, St Pancras Thameslink low-level platforms]

Generated description

St Pancras Thameslink low-level platforms were the former subterranean Thameslink platforms at St Pancras in London, serving cross-London suburban and regional services before being replaced by the new St Pancras Thameslink (now St Pancras International Thameslink) station.

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

Target predicate: hasKeyNode
Context triple: [Midland Main Line (southern section via Thameslink), hasKeyNode, St Pancras Thameslink low-level platforms]

A. hasKeyElement
Indicates that one entity contains or depends on another entity that serves as a primary or essential component.
B. hasKeyStructure
Indicates that one entity possesses or defines the primary structural framework or core structural pattern of another entity.
C. hasKeyStep
Indicates that one action, event, or process includes another as a crucial or essential intermediate step.
D. hasKeyOutput
Indicates that one entity produces or provides a primary or essential output for another entity or process.
E. hasKeyLocation chosen
Indicates that an entity possesses or is associated with a specific primary or important location relevant to it.
F. None of above.

Provenance (6 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_69e75a88fdf081908e47ae6e195c14e1`	completed	April 21, 2026, 11:07 a.m.
NER	Named-entity recognition	`batch_69f60c3b09488190ade1b69ff7f0df0e`	completed	May 2, 2026, 2:37 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a105d1bc9cc81909fdf249b3374d831`	completed	May 22, 2026, 1:41 p.m.
NEDg	Description generation	`batch_6a105dd1e43c8190b10f80fbfa0d1b87`	completed	May 22, 2026, 1:44 p.m.
NED2	Entity disambiguation (via description)	`batch_6a105e720558819080a749cd92cd6fc9`	completed	May 22, 2026, 1:47 p.m.
PD	Predicate disambiguation	`batch_69f60b8461ac81908c5bd3d73eed59f4`	completed	May 2, 2026, 2:34 p.m.

Created at: April 21, 2026, 12:35 p.m.