Triple

T23379577
Position Surface form Disambiguated ID Type / Status
Subject Poortugaal station E593703 entity
Predicate servedByLine P1293 FINISHED
Object Rotterdam Metro Line C
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.
E351568 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: 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.
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: Rotterdam Metro Line C
Triple: [Poortugaal station, servedByLine, Rotterdam Metro Line C]
Generated 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.
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 (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_69e25d268a50819095f2fd479da8ef3f completed April 17, 2026, 4:17 p.m.
NER Named-entity recognition batch_69f1a3b5e4f0819081a5d4586796677b completed April 29, 2026, 6:22 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c823e54f88190a3e622bb6f999076 completed May 19, 2026, 3:31 p.m.
NEDg Description generation batch_6a0ca6eda1f481908482f3a66d576c3c completed May 19, 2026, 6:07 p.m.
NED2 Entity disambiguation (via description) batch_6a0ca7c5176c81908221307bb50ff4ed completed May 19, 2026, 6:11 p.m.
Created at: April 17, 2026, 5:34 p.m.