Triple

T436394
Position Surface form Disambiguated ID Type / Status
Subject Brussels E10018 entity
Predicate hasTramNetwork P474 FINISHED
Object Brussels tram system
The Brussels tram system is an extensive urban light rail network that complements the city’s metro and bus services, providing key public transportation across the Brussels-Capital Region.
E56003 NE FINISHED

How this triple was built (5 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: Brussels tram system | Statement: [Brussels, hasTramNetwork, Brussels tram system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Brussels tram system
Context triple: [Brussels, hasTramNetwork, Brussels tram system]
  • A. Brussels Metro
    The Brussels Metro is the rapid transit system serving Belgium’s capital, forming the core of its urban public transportation network with multiple underground and light rail lines.
  • B. Bruxelles-Central / Brussel-Centraal
    Bruxelles-Central / Brussel-Centraal is the main central railway station in Brussels, Belgium, serving as a key hub for national and regional train services.
  • C. Amsterdam Metro network
    The Amsterdam Metro network is the rapid transit system serving Amsterdam and surrounding areas, consisting of multiple underground and surface lines that connect key neighborhoods, suburbs, and transport hubs across the city.
  • D. Brussels-Luxembourg railway station
    Brussels-Luxembourg railway station is a central Brussels train station located in the European Quarter, serving as a key transport hub for the nearby European Parliament and surrounding institutions.
  • E. Bruxelles-Midi / Brussel-Zuid
    Bruxelles-Midi / Brussel-Zuid is the main international and long-distance railway hub of Brussels, serving high-speed trains like Eurostar and Thalys as well as extensive domestic 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: Brussels tram system
Triple: [Brussels, hasTramNetwork, Brussels tram system]
Generated description
The Brussels tram system is an extensive urban light rail network that complements the city’s metro and bus services, providing key public transportation across the Brussels-Capital Region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Brussels tram system
Target entity description: The Brussels tram system is an extensive urban light rail network that complements the city’s metro and bus services, providing key public transportation across the Brussels-Capital Region.
  • A. Brussels Metro
    The Brussels Metro is the rapid transit system serving Belgium’s capital, forming the core of its urban public transportation network with multiple underground and light rail lines.
  • B. Bruxelles-Central / Brussel-Centraal
    Bruxelles-Central / Brussel-Centraal is the main central railway station in Brussels, Belgium, serving as a key hub for national and regional train services.
  • C. Amsterdam Metro network
    The Amsterdam Metro network is the rapid transit system serving Amsterdam and surrounding areas, consisting of multiple underground and surface lines that connect key neighborhoods, suburbs, and transport hubs across the city.
  • D. Brussels-Luxembourg railway station
    Brussels-Luxembourg railway station is a central Brussels train station located in the European Quarter, serving as a key transport hub for the nearby European Parliament and surrounding institutions.
  • E. Bruxelles-Midi / Brussel-Zuid
    Bruxelles-Midi / Brussel-Zuid is the main international and long-distance railway hub of Brussels, serving high-speed trains like Eurostar and Thalys as well as extensive domestic services.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasTramNetwork
Context triple: [Brussels, hasTramNetwork, Brussels tram system]
  • A. hasStreetcarSystem chosen
    Indicates that a place possesses or is served by an operational streetcar (tram) transit system.
  • B. hasLightRailSystem
    Indicates that a place possesses and operates a light rail transit system.
  • C. hasShuttleLine
    Indicates that there is a shuttle service or route operating between the related entities.
  • D. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • E. hasTransportHub
    Indicates that a location contains or serves as a central facility where multiple transport routes or modes connect for passenger or cargo movement.
  • F. None of above.

Provenance (6 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_69a2e8465ef481909655c681b01e2986 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2ef0c97188190b62104cb639d4b60 completed Feb. 28, 2026, 1:35 p.m.
NED1 Entity disambiguation (via context triple) batch_69a442a01ebc8190bc4810df7c358932 completed March 1, 2026, 1:44 p.m.
NEDg Description generation batch_69a4430b95048190bde4ff5118bda91f completed March 1, 2026, 1:45 p.m.
NED2 Entity disambiguation (via description) batch_69a4433c43388190a634c2a630bde2e6 completed March 1, 2026, 1:46 p.m.
PD Predicate disambiguation batch_69a2eddb98e081909efcf9f0a955a908 completed Feb. 28, 2026, 1:30 p.m.
Created at: Feb. 28, 2026, 1:11 p.m.