Triple
T436393
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Brussels |
E10018
|
entity |
| Predicate | hasMetroSystem |
P522
|
FINISHED |
| Object |
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.
|
E55760
|
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: Brussels Metro | Statement: [Brussels, hasMetroSystem, Brussels Metro]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brussels Metro Context triple: [Brussels, hasMetroSystem, Brussels Metro]
-
A.
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.
-
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.
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.
-
D.
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.
-
E.
Paris Metro
The Paris Metro is the extensive rapid transit system serving Paris and its suburbs, known for its dense network, Art Nouveau station entrances, and central role in the city’s public transportation.
- 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 Metro Triple: [Brussels, hasMetroSystem, Brussels Metro]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Brussels Metro Target entity description: 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.
-
A.
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.
-
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.
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.
-
D.
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.
-
E.
Paris Metro
The Paris Metro is the extensive rapid transit system serving Paris and its suburbs, known for its dense network, Art Nouveau station entrances, and central role in the city’s public transportation.
- F. None of above. chosen
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_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_69a43e706fd8819082dd795fcad5465c |
completed | March 1, 2026, 1:26 p.m. |
| NEDg | Description generation | batch_69a43f465f608190a5a57c58bdb30538 |
completed | March 1, 2026, 1:29 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4409efb1081909583cba0e6657f3e |
completed | March 1, 2026, 1:35 p.m. |
Created at: Feb. 28, 2026, 1:11 p.m.