Triple

T14817888
Position Surface form Disambiguated ID Type / Status
Subject Taveiro station E348365 entity
Predicate connectsTo P845 FINISHED
Object Coimbra-A railway station
Coimbra-A railway station is the central railway terminus in Coimbra, Portugal, serving as a key hub for regional and urban rail services in the city.
 E1125889 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Coimbra-A railway station | Statement: [Taveiro station, connectsTo, Coimbra-A railway station]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Coimbra-A railway station
Context triple: [Taveiro station, connectsTo, Coimbra-A railway station]
  • A. Coimbra-B railway station
    Coimbra-B railway station is a major Portuguese rail hub in the city of Coimbra, serving as a key interchange for long-distance and regional train services operated by Comboios de Portugal.
  • B. Abrantes railway station
    Abrantes railway station is a key rail transport hub serving the town of Abrantes in central Portugal, connecting regional and long-distance train services.
  • C. Guimarães railway station
    Guimarães railway station is a key passenger rail hub in northern Portugal serving the historic city of Guimarães with regional and intercity train connections.
  • D. Porto Campanhã railway station
    Porto Campanhã railway station is the main intercity and regional rail hub in Porto, Portugal, serving as a key gateway for national and international train connections.
  • E. Braga railway station
    Braga railway station is the main rail hub in the city of Braga, Portugal, serving as a northern terminus for high-speed and regional train 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: Coimbra-A railway station
Target entity description: Coimbra-A railway station is the central railway terminus in Coimbra, Portugal, serving as a key hub for regional and urban rail services in the city.
  • A. Coimbra-B railway station
    Coimbra-B railway station is a major Portuguese rail hub in the city of Coimbra, serving as a key interchange for long-distance and regional train services operated by Comboios de Portugal.
  • B. Abrantes railway station
    Abrantes railway station is a key rail transport hub serving the town of Abrantes in central Portugal, connecting regional and long-distance train services.
  • C. Guimarães railway station
    Guimarães railway station is a key passenger rail hub in northern Portugal serving the historic city of Guimarães with regional and intercity train connections.
  • D. Porto Campanhã railway station
    Porto Campanhã railway station is the main intercity and regional rail hub in Porto, Portugal, serving as a key gateway for national and international train connections.
  • E. Braga railway station
    Braga railway station is the main rail hub in the city of Braga, Portugal, serving as a northern terminus for high-speed and regional train services.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Coimbra-A railway station
Triple: [Taveiro station, connectsTo, Coimbra-A railway station]
Generated description
Coimbra-A railway station is the central railway terminus in Coimbra, Portugal, serving as a key hub for regional and urban rail services in the city.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d822eb8f588190bf53445e730a934f elicitation completed
NER batch_69decfe2c1ec81908b3dff7a5d0e85d0 ner completed
NED1 batch_69fe6b495800819091c7e1636514222a ned_source_triple completed
NED2 batch_69fe6c6ebe4881909334d772e45403f6 ned_description completed
NEDg batch_69fe6be21f148190bec0e5adfcc0a91a nedg completed
Created at: April 10, 2026, 1:50 a.m.