Triple
T20088510
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | West Harrow Underground station |
E496201
|
entity |
| Predicate | followingStationOnMetropolitanLineTowardsAldgate |
P138674
|
FINISHED |
| Object | Harrow-on-the-Hill Underground station |
—
|
NE NERFINISHED |
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: Harrow-on-the-Hill Underground station | Statement: [West Harrow Underground station, followingStationOnMetropolitanLineTowardsAldgate, Harrow-on-the-Hill Underground station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Harrow-on-the-Hill Underground station Context triple: [West Harrow Underground station, followingStationOnMetropolitanLineTowardsAldgate, Harrow-on-the-Hill Underground station]
-
A.
Harrow-on-the-Hill Underground station
chosen
Harrow-on-the-Hill Underground station is a major London Underground and National Rail interchange in northwest London, serving as a key hub on the Metropolitan line.
-
B.
North Harrow Underground station
North Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban area of North Harrow in northwest London.
-
C.
West Harrow Underground station
West Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban West Harrow area in the London Borough of Harrow.
-
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.
Balham Underground station
Balham Underground station is a London Underground station in south London served by the Northern line, providing access to the Balham area and connections with National Rail services.
- 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: followingStationOnMetropolitanLineTowardsAldgate Context triple: [West Harrow Underground station, followingStationOnMetropolitanLineTowardsAldgate, Harrow-on-the-Hill Underground station]
-
A.
adjacentStationTowardsLondonBridge
Indicates that one station is directly next to another along the rail line in the direction heading toward London Bridge.
-
B.
adjacentStationOnCentralLineTowardsEast
Indicates that one station is directly next to another along the Central Line in the eastbound direction.
-
C.
adjacentStationTowardsStrood
Indicates that one station is directly next to another in the direction of Strood along a railway line.
-
D.
adjacentStationOnBakerlooLine
Indicates that one station is directly next to another station along the Bakerloo Line, with no other stations in between.
-
E.
adjacentStationOnNorthernLine
Indicates that one station is directly next to another station along the Northern Line, with no other stations in between.
- F. None of above. chosen
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_69da626eee3881909f3454986d4a6511 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e6655d65a88190a510132f36341b6c |
completed | April 20, 2026, 5:41 p.m. |
| PD | Predicate disambiguation | batch_69e54cf369b88190931532420517dac7 |
completed | April 19, 2026, 9:45 p.m. |
| PDg | Predicate description generation | batch_69e54fc20888819083c9118a09d0d2dc |
completed | April 19, 2026, 9:57 p.m. |
Created at: April 11, 2026, 11:17 p.m.