Triple
T23379577
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Poortugaal station |
E593703
|
entity |
| Predicate | servedByLine |
P1293
|
FINISHED |
| Object | Rotterdam Metro Line C |
—
|
NE NERFINISHED |
How this triple was built (3 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: Rotterdam Metro Line C | Statement: [Poortugaal station, servedByLine, Rotterdam Metro Line C]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rotterdam Metro Line C Context triple: [Poortugaal station, servedByLine, Rotterdam Metro Line C]
-
A.
Rotterdam Metro
The Rotterdam Metro is the rapid transit system serving Rotterdam and surrounding municipalities in the Netherlands, providing high-frequency urban and suburban rail connections.
-
B.
Rotterdam tram network
The Rotterdam tram network is an extensive urban light rail system serving the city of Rotterdam and its suburbs, providing frequent public transport connections across the metropolitan area.
-
C.
Amsterdam North–South line
The Amsterdam North–South line is a major metro route in Amsterdam that runs between the northern and southern parts of the city, significantly improving cross-city public transport connectivity.
-
D.
Utrecht–Maliebaan line
The Utrecht–Maliebaan line is a historic railway route in Utrecht, the Netherlands, now best known for serving the Railway Museum and heritage train services rather than regular passenger traffic.
-
E.
Duivendrecht metro station
Duivendrecht metro station is a major interchange station in the Amsterdam Metro network, serving as a key connection point between metro lines and national rail services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rotterdam Metro Line C Target entity description: Rotterdam Metro Line C is a rapid transit line in the Rotterdam Metro network that runs from De Terp in Capelle aan den IJssel through central Rotterdam to De Akkers in Spijkenisse.
-
A.
Rotterdam Metro
chosen
The Rotterdam Metro is the rapid transit system serving Rotterdam and surrounding municipalities in the Netherlands, providing high-frequency urban and suburban rail connections.
-
B.
Rotterdam tram network
The Rotterdam tram network is an extensive urban light rail system serving the city of Rotterdam and its suburbs, providing frequent public transport connections across the metropolitan area.
-
C.
Amsterdam North–South line
The Amsterdam North–South line is a major metro route in Amsterdam that runs between the northern and southern parts of the city, significantly improving cross-city public transport connectivity.
-
D.
Utrecht–Maliebaan line
The Utrecht–Maliebaan line is a historic railway route in Utrecht, the Netherlands, now best known for serving the Railway Museum and heritage train services rather than regular passenger traffic.
-
E.
Duivendrecht metro station
Duivendrecht metro station is a major interchange station in the Amsterdam Metro network, serving as a key connection point between metro lines and national rail services.
- F. None of above.
Provenance (2 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_69e25d268a50819095f2fd479da8ef3f |
completed | April 17, 2026, 4:17 p.m. |
| NER | Named-entity recognition | batch_69f1a3b5e4f0819081a5d4586796677b |
completed | April 29, 2026, 6:22 a.m. |
Created at: April 17, 2026, 5:34 p.m.