Triple
T17670264
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Patras–Athens railway line |
E440501
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
Piraeus–Patras railway
The Piraeus–Patras railway is a major Greek rail corridor linking the port of Piraeus and the Athens area with the western port city of Patras across the northern Peloponnese.
|
E440501
|
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: Piraeus–Patras railway | Statement: [Patras–Athens railway line, partOf, Piraeus–Patras railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Piraeus–Patras railway Context triple: [Patras–Athens railway line, partOf, Piraeus–Patras 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.
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.
-
C.
Athens–Corinth railway line
The Athens–Corinth railway line is a major rail corridor in Greece connecting the capital Athens with the city of Corinth and serving as a key part of the country’s mainline rail network.
-
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–Chalkida line
The Piraeus–Chalkida line is a key Greek railway route connecting the port city of Piraeus and the Athens metropolitan area with the island city of Chalkida in Euboea.
- 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: Piraeus–Patras railway Triple: [Patras–Athens railway line, partOf, Piraeus–Patras railway]
Generated description
The Piraeus–Patras railway is a major Greek rail corridor linking the port of Piraeus and the Athens area with the western port city of Patras across the northern Peloponnese.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Piraeus–Patras railway Target entity description: The Piraeus–Patras railway is a major Greek rail corridor linking the port of Piraeus and the Athens area with the western port city of Patras across the northern Peloponnese.
-
A.
Patras–Athens railway line
chosen
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.
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.
-
C.
Athens–Corinth railway line
The Athens–Corinth railway line is a major rail corridor in Greece connecting the capital Athens with the city of Corinth and serving as a key part of the country’s mainline rail network.
-
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–Chalkida line
The Piraeus–Chalkida line is a key Greek railway route connecting the port city of Piraeus and the Athens metropolitan area with the island city of Chalkida in Euboea.
- F. None of above.
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_69d8b9e87e18819087104a44dc4dc5b1 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e46f67f6188190a978c7c9f462064d |
completed | April 19, 2026, 6 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a02166234f0819099c452808234e3e4 |
completed | May 11, 2026, 5:48 p.m. |
| NEDg | Description generation | batch_6a0217ca2ec881908573b0423c3610f7 |
completed | May 11, 2026, 5:54 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0218636e048190a48bc7f066c7bee1 |
completed | May 11, 2026, 5:56 p.m. |
Created at: April 10, 2026, 9:59 a.m.