Triple
T18367832
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Kato Achaia |
E440095
|
entity |
| Predicate | servedByRailwayLine |
P848
|
FINISHED |
| Object |
Patras–Pyrgos railway
The Patras–Pyrgos railway is a regional rail line in western Greece connecting the port city of Patras with the town of Pyrgos through several intermediate communities in Achaea and Elis.
|
E1321800
|
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: Patras–Pyrgos railway | Statement: [Kato Achaia, servedByRailwayLine, Patras–Pyrgos railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Patras–Pyrgos railway Context triple: [Kato Achaia, servedByRailwayLine, Patras–Pyrgos railway]
-
A.
Patras–Athens railway line
The Patras–Athens railway line is a major rail corridor in Greece connecting the port city of Patras in the Peloponnese with the capital city of Athens, serving as a key route for both passenger and freight transport.
-
B.
Diakopto–Kalavryta Railway
The Diakopto–Kalavryta Railway is a historic narrow-gauge rack railway in Greece, renowned for its scenic route through the Vouraikos Gorge in the northern Peloponnese.
-
C.
Athens–Thessaloniki railway
The Athens–Thessaloniki railway is Greece’s principal north–south mainline route, connecting the capital Athens with the northern port city of Thessaloniki and serving major intermediate cities along the way.
-
D.
Paleofarsalos–Kalambaka railway line
The Paleofarsalos–Kalambaka railway line is a regional rail route in Thessaly, Greece, connecting the mainline network at Paleofarsalos with the town of Kalambaka near the Meteora rock formations.
-
E.
Piraeus–Athens railway line
The Piraeus–Athens railway line is a key suburban rail corridor in Greece linking the port city of Piraeus with central Athens and forming part of the country’s main rail network.
- 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: Patras–Pyrgos railway Triple: [Kato Achaia, servedByRailwayLine, Patras–Pyrgos railway]
Generated description
The Patras–Pyrgos railway is a regional rail line in western Greece connecting the port city of Patras with the town of Pyrgos through several intermediate communities in Achaea and Elis.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Patras–Pyrgos railway Target entity description: The Patras–Pyrgos railway is a regional rail line in western Greece connecting the port city of Patras with the town of Pyrgos through several intermediate communities in Achaea and Elis.
-
A.
Patras–Athens railway line
The Patras–Athens railway line is a major rail corridor in Greece connecting the port city of Patras in the Peloponnese with the capital city of Athens, serving as a key route for both passenger and freight transport.
-
B.
Diakopto–Kalavryta Railway
The Diakopto–Kalavryta Railway is a historic narrow-gauge rack railway in Greece, renowned for its scenic route through the Vouraikos Gorge in the northern Peloponnese.
-
C.
Athens–Thessaloniki railway
The Athens–Thessaloniki railway is Greece’s principal north–south mainline route, connecting the capital Athens with the northern port city of Thessaloniki and serving major intermediate cities along the way.
-
D.
Paleofarsalos–Kalambaka railway line
The Paleofarsalos–Kalambaka railway line is a regional rail route in Thessaly, Greece, connecting the mainline network at Paleofarsalos with the town of Kalambaka near the Meteora rock formations.
-
E.
Piraeus–Athens railway line
The Piraeus–Athens railway line is a key suburban rail corridor in Greece linking the port city of Piraeus with central Athens and forming part of the country’s main rail network.
- 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_69d8b918221c8190a9f7b563d64ac677 |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e5174f5f448190a1fc67d3039aadd9 |
completed | April 19, 2026, 5:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a03d7764a84819095e35108a71f8e96 |
completed | May 13, 2026, 1:44 a.m. |
| NEDg | Description generation | batch_6a03de5ba068819080dfdf66ba03eb5c |
completed | May 13, 2026, 2:13 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a03defaf90c81908348ebd286de0e32 |
completed | May 13, 2026, 2:16 a.m. |
Created at: April 10, 2026, 10:38 a.m.