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.