Triple
T2156607
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Snowdonia |
E47901
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object |
Snowdon Mountain Railway
Snowdon Mountain Railway is a historic narrow-gauge rack and pinion railway in Wales that carries passengers from Llanberis to near the summit of Mount Snowdon.
|
E240834
|
NE FINISHED |
How this triple was built (4 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: Snowdon Mountain Railway | Statement: [Snowdonia, contains, Snowdon Mountain Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Snowdon Mountain Railway Context triple: [Snowdonia, contains, Snowdon Mountain Railway]
-
A.
Ffestiniog Railway
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
-
B.
Conwy Valley Line
The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
-
C.
Talyllyn Railway
Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
-
D.
Heart of Wales Line
The Heart of Wales Line is a scenic rural railway route in Wales and the English borderlands, known for its picturesque landscapes, small request-stop stations, and leisurely services connecting Swansea and Shrewsbury.
-
E.
Snaefell Mountain Railway
The Snaefell Mountain Railway is a historic electric mountain railway on the Isle of Man that carries passengers from Laxey to the summit of Snaefell, the island’s highest peak.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Snowdon Mountain Railway Triple: [Snowdonia, contains, Snowdon Mountain Railway]
Generated description
Snowdon Mountain Railway is a historic narrow-gauge rack and pinion railway in Wales that carries passengers from Llanberis to near the summit of Mount Snowdon.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Snowdon Mountain Railway Target entity description: Snowdon Mountain Railway is a historic narrow-gauge rack and pinion railway in Wales that carries passengers from Llanberis to near the summit of Mount Snowdon.
-
A.
Ffestiniog Railway
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
-
B.
Conwy Valley Line
The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
-
C.
Talyllyn Railway
Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
-
D.
Heart of Wales Line
The Heart of Wales Line is a scenic rural railway route in Wales and the English borderlands, known for its picturesque landscapes, small request-stop stations, and leisurely services connecting Swansea and Shrewsbury.
-
E.
Snaefell Mountain Railway
The Snaefell Mountain Railway is a historic electric mountain railway on the Isle of Man that carries passengers from Laxey to the summit of Snaefell, the island’s highest peak.
- F. None of above. chosen
Provenance (5 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_69a88a1d1fd8819088b34990d69a712f |
completed | March 4, 2026, 7:38 p.m. |
| NER | Named-entity recognition | batch_69abbe67d6888190b8d3c07527c8f80e |
completed | March 7, 2026, 5:58 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae58e53fe481908fa4035ee98bd6ca |
completed | March 9, 2026, 5:21 a.m. |
| NEDg | Description generation | batch_69ae5a612f7081909fe82c45d07f3311 |
completed | March 9, 2026, 5:28 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae5b09402c81908b68e4ad4c06f215 |
completed | March 9, 2026, 5:30 a.m. |
Created at: March 4, 2026, 7:44 p.m.