Triple
T11627581
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Porthmadog |
E276310
|
entity |
| Predicate | hasHeritageRailwayStation |
P13106
|
FINISHED |
| Object | Porthmadog Harbour railway station |
E241963
|
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: Porthmadog Harbour railway station | Statement: [Porthmadog, hasHeritageRailwayStation, Porthmadog Harbour railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Porthmadog Harbour railway station Context triple: [Porthmadog, hasHeritageRailwayStation, Porthmadog Harbour railway station]
-
A.
Porthmadog Harbour Station
chosen
Porthmadog Harbour Station is a historic narrow-gauge railway terminus in Porthmadog, Wales, serving as a key hub for heritage steam services on the Ffestiniog Railway.
-
B.
Barmouth railway station
Barmouth railway station is a coastal train station in Gwynedd, Wales, providing passenger rail services to the seaside town of Barmouth on the Cambrian Coast Line.
-
C.
Pwllheli railway station
Pwllheli railway station is a coastal railway terminus in Gwynedd, Wales, serving the town of Pwllheli at the western end of the Cambrian Coast Line.
-
D.
Tywyn Wharf railway station
Tywyn Wharf railway station is the main station and visitor hub of the historic narrow-gauge Talyllyn Railway in Gwynedd, Wales.
-
E.
Llanberis station
Llanberis station is the lower terminus and main departure point of the Snowdon Mountain Railway in Gwynedd, Wales.
- 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_69d6aafa51148190ab84940694c00235 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d8a1259cd08190a75eeacb5e39b858 |
completed | April 10, 2026, 7:05 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ef135cde4881908d1cf9f752592d60 |
completed | April 27, 2026, 7:42 a.m. |
Created at: April 8, 2026, 9:39 p.m.