Triple

T7780716
Position Surface form Disambiguated ID Type / Status
Subject Belsize Park tube station E221507 entity
Predicate isOnBranchOfNorthernLine P48516 FINISHED
Object Edgware branch E302149 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: Edgware branch | Statement: [Belsize Park tube station, isOnBranchOfNorthernLine, Edgware branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Edgware branch
Context triple: [Belsize Park tube station, isOnBranchOfNorthernLine, Edgware branch]
  • A. Edgware branch chosen
    The Edgware branch is a northern suburban section of the London Underground’s Northern line running from central London to Edgware.
  • B. Edgware Road Station
    Edgware Road Station is a London Underground station in central London serving multiple Tube lines and acting as a key interchange near Paddington.
  • C. Ladbroke Grove tube station
    Ladbroke Grove tube station is a London Underground station in West London served by the Circle and Hammersmith & City lines.
  • D. 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.
  • E. Uxbridge tube station
    Uxbridge tube station is a London Underground station in west London serving as the terminus for both the Metropolitan and Piccadilly lines.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: isOnBranchOfNorthernLine
Context triple: [Belsize Park tube station, isOnBranchOfNorthernLine, Edgware branch]
  • A. isOnEastWestTrunkLine
    Indicates that something is located on, or directly aligned with, a primary east–west transportation or utility trunk line.
  • B. adjacentStationOnNorthernLine
    Indicates that one station is directly next to another station along the Northern Line, with no other stations in between.
  • C. previousStationOnLine1Northbound
    Indicates that one station is immediately before another station when traveling northbound on line 1.
  • D. northernBranch chosen
    Indicates that one entity functions as the northern division, section, or offshoot of another entity.
  • E. openedOnNorthernLinePredecessor
    Indicates that something was opened on a railway line that preceded and was later replaced by the Northern line.
  • F. None of above.

Provenance (4 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_69ca83ebbef881909ac47f789145fef7 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cae7e779ec8190b77296d9c2ac3210 completed March 30, 2026, 9:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69caf5c1f20c81908ae2fc35550b91b5 completed March 30, 2026, 10:14 p.m.
PD Predicate disambiguation batch_69caa488532c819093ac40bba0b3c7ef completed March 30, 2026, 4:27 p.m.
Created at: March 30, 2026, 4:20 p.m.