Triple
T20626361
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Great Northern Railway (Ireland) |
E506827
|
entity |
| Predicate | mainLine |
P24771
|
FINISHED |
| Object | Portadown–Derry line |
—
|
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: Portadown–Derry line | Statement: [Great Northern Railway (Ireland), mainLine, Portadown–Derry line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Portadown–Derry line Context triple: [Great Northern Railway (Ireland), mainLine, Portadown–Derry line]
-
A.
Belfast–Derry line
The Belfast–Derry line is a major railway route in Northern Ireland linking Belfast with the city of Derry/Londonderry and serving numerous intermediate towns.
-
B.
Belfast–Portadown line
The Belfast–Portadown line is a key railway route in Northern Ireland connecting Belfast with the town of Portadown and forming part of the region’s main intercity and commuter rail network.
-
C.
Portadown Line
The Portadown Line is a key Northern Ireland Railways route connecting Belfast with Portadown, serving as an important commuter and regional rail corridor.
-
D.
Belfast–Dublin corridor
The Belfast–Dublin corridor is a major economic and transport axis linking Northern Ireland’s capital Belfast with Ireland’s capital Dublin, encompassing key urban and industrial areas along its route.
-
E.
Irish border
The Irish border is the international boundary separating Northern Ireland, which is part of the United Kingdom, from the Republic of Ireland, and has long been a focal point of political, social, and economic tensions on the island.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Portadown–Derry line Target entity description: The Portadown–Derry line was a key Irish railway route in Northern Ireland that connected the town of Portadown with the city of Derry, serving as an important regional transport link.
-
A.
Belfast–Derry line
The Belfast–Derry line is a major railway route in Northern Ireland linking Belfast with the city of Derry/Londonderry and serving numerous intermediate towns.
-
B.
Belfast–Portadown line
The Belfast–Portadown line is a key railway route in Northern Ireland connecting Belfast with the town of Portadown and forming part of the region’s main intercity and commuter rail network.
-
C.
Portadown Line
The Portadown Line is a key Northern Ireland Railways route connecting Belfast with Portadown, serving as an important commuter and regional rail corridor.
-
D.
Belfast–Dublin corridor
The Belfast–Dublin corridor is a major economic and transport axis linking Northern Ireland’s capital Belfast with Ireland’s capital Dublin, encompassing key urban and industrial areas along its route.
-
E.
Irish border
The Irish border is the international boundary separating Northern Ireland, which is part of the United Kingdom, from the Republic of Ireland, and has long been a focal point of political, social, and economic tensions on the island.
- F. None of above. chosen
Provenance (2 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_69e0b4bd4a0081908d4e97a590a33fb2 |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e6abe576c081909231dc0d7304b9a9 |
completed | April 20, 2026, 10:42 p.m. |
Created at: April 16, 2026, 11:42 a.m.