Triple

T28342094
Position Surface form Disambiguated ID Type / Status
Subject Highgate Underground Station E717840 entity
Predicate integratedIntoUndergroundPlan P106580 FINISHED
Object Northern Heights project
The Northern Heights project was an ambitious but largely uncompleted 1930s London Underground expansion scheme intended to extend and electrify suburban railway lines in North London as part of the Northern line.
 E1814645 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: Northern Heights project | Statement: [Highgate Underground Station, integratedIntoUndergroundPlan, Northern Heights project]
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: Northern Heights project
Triple: [Highgate Underground Station, integratedIntoUndergroundPlan, Northern Heights project]
Generated description
The Northern Heights project was an ambitious but largely uncompleted 1930s London Underground expansion scheme intended to extend and electrify suburban railway lines in North London as part of the Northern line.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: integratedIntoUndergroundPlan
Context triple: [Highgate Underground Station, integratedIntoUndergroundPlan, Northern Heights project]
  • A. integratedIntoUnderground chosen
    Indicates that something has been incorporated or absorbed into an underground system, structure, or environment.
  • B. operatedUnderground
    Indicates that an entity conducted its activities or operations beneath the surface of the ground, rather than at or above ground level.
  • C. hasUndergroundSection
    Indicates that an entity includes a portion or segment that is located below ground level.
  • D. hasUndergroundConnections
    Indicates that one entity is linked to another through subterranean or hidden passageways, networks, or channels.
  • E. hasUndergroundLevel
    Indicates that one entity possesses or includes a level, floor, or section that is located below ground level.
  • 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_69eff6eb30388190b898b96c4be6f49d completed April 27, 2026, 11:53 p.m.
NER Named-entity recognition batch_69f6978fe97081908fe568091ad9b159 completed May 3, 2026, 12:32 a.m.
NED1 Entity disambiguation (via context triple) batch_6a1627bec9ac819094444c5b5130ceb8 completed May 26, 2026, 11:07 p.m.
NEDg Description generation batch_6a162a68838481908eed21663497c78a completed May 26, 2026, 11:19 p.m.
NED2 Entity disambiguation (via description) batch_6a162af3b7308190851819d6989be119 completed May 26, 2026, 11:21 p.m.
PD Predicate disambiguation batch_69f69661e6ec8190948251c7516a32ad completed May 3, 2026, 12:27 a.m.
Created at: April 28, 2026, 12:40 a.m.