Triple
T12638562
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Northwood |
E301829
|
entity |
| Predicate | isOnBranch |
P20674
|
FINISHED |
| Object | Metropolitan line Amersham branch |
E987300
|
NE FINISHED |
How this triple was built (2 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: Metropolitan line Amersham branch | Statement: [Northwood, isOnBranch, Metropolitan line Amersham branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan line Amersham branch Context triple: [Northwood, isOnBranch, Metropolitan line Amersham branch]
-
A.
Slough–Windsor & Eton line
The Slough–Windsor & Eton line is a short branch railway in Berkshire, England, connecting Slough on the Great Western Main Line with the town of Windsor and its Windsor & Eton Central terminus.
-
B.
West London line
The West London line is a north–south railway route in west London that connects Willesden Junction to Clapham Junction, used by both London Overground and other train operators.
-
C.
Metropolitan line branch to Chesham
chosen
The Metropolitan line branch to Chesham is a rural outer-suburban spur of the London Underground’s Metropolitan line, running from Chalfont & Latimer to serve the town of Chesham in Buckinghamshire.
-
D.
Chertsey branch line
The Chertsey branch line is a suburban railway route in Surrey, England, connecting the town of Chertsey to the wider South Western rail network.
-
E.
Maidenhead–Marlow branch line
The Maidenhead–Marlow branch line is a short railway line in Berkshire and Buckinghamshire, England, connecting Maidenhead with Marlow and serving several intermediate suburban stations.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d7bdec9f9c8190b4bac675b7588211 |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d961499de08190bdba66ca40b021be |
completed | April 10, 2026, 8:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f6719886708190823f6f7e94e4d199 |
completed | May 2, 2026, 9:50 p.m. |
Created at: April 9, 2026, 5:16 p.m.