Triple
T18559850
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pontrhydyfen |
E453604
|
entity |
| Predicate | hasStructure |
P35
|
FINISHED |
| Object |
Pontrhydyfen Viaduct
Pontrhydyfen Viaduct is a historic multi-arched stone railway viaduct in Pontrhydyfen, Wales, notable for its striking appearance and role in the area's industrial heritage.
|
E1343076
|
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: Pontrhydyfen Viaduct | Statement: [Pontrhydyfen, hasStructure, Pontrhydyfen Viaduct]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pontrhydyfen Viaduct Context triple: [Pontrhydyfen, hasStructure, Pontrhydyfen Viaduct]
-
A.
Dyfi Bridge
Dyfi Bridge is a historic stone road bridge in Wales that carries traffic across the River Dyfi near Machynlleth.
-
B.
Tal-y-Cafn bridge
Tal-y-Cafn bridge is a road bridge in Conwy, Wales, that carries traffic across the River Conwy near the village of Tal-y-Cafn.
-
C.
Landore Viaduct
Landore Viaduct is a historic railway bridge in Swansea, Wales, carrying rail traffic across the River Tawe.
-
D.
Barmouth Bridge
Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
-
E.
Pont-y-Pair Bridge
Pont-y-Pair Bridge is a historic stone bridge and popular scenic viewpoint spanning the River Llugwy in the village of Betws-y-Coed in Snowdonia, Wales.
- 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: Pontrhydyfen Viaduct Triple: [Pontrhydyfen, hasStructure, Pontrhydyfen Viaduct]
Generated description
Pontrhydyfen Viaduct is a historic multi-arched stone railway viaduct in Pontrhydyfen, Wales, notable for its striking appearance and role in the area's industrial heritage.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pontrhydyfen Viaduct Target entity description: Pontrhydyfen Viaduct is a historic multi-arched stone railway viaduct in Pontrhydyfen, Wales, notable for its striking appearance and role in the area's industrial heritage.
-
A.
Dyfi Bridge
Dyfi Bridge is a historic stone road bridge in Wales that carries traffic across the River Dyfi near Machynlleth.
-
B.
Tal-y-Cafn bridge
Tal-y-Cafn bridge is a road bridge in Conwy, Wales, that carries traffic across the River Conwy near the village of Tal-y-Cafn.
-
C.
Landore Viaduct
Landore Viaduct is a historic railway bridge in Swansea, Wales, carrying rail traffic across the River Tawe.
-
D.
Barmouth Bridge
Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
-
E.
Pont-y-Pair Bridge
Pont-y-Pair Bridge is a historic stone bridge and popular scenic viewpoint spanning the River Llugwy in the village of Betws-y-Coed in Snowdonia, Wales.
- 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_69d8d388b0c881908e610a1c45b52640 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e538098a148190b0fc7098ce3c62fd |
completed | April 19, 2026, 8:16 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a054702a4008190afe8744520d4dfcb |
completed | May 14, 2026, 3:52 a.m. |
| NEDg | Description generation | batch_6a054a15410c819090fbed16c2331ead |
completed | May 14, 2026, 4:05 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a054a8c26848190b24073356b0cdf2c |
completed | May 14, 2026, 4:07 a.m. |
Created at: April 10, 2026, 11:42 a.m.