Triple

T22992136

Position	Surface form	Disambiguated ID	Type / Status
Subject	Brasília Metro	`E572078`	entity
Predicate	operator	`P179`	FINISHED
Object	Companhia do Metropolitano do Distrito Federal Companhia do Metropolitano do Distrito Federal is the public company responsible for operating and managing the metro system serving Brazil’s Federal District, including the capital Brasília.	`E1564423`	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: Companhia do Metropolitano do Distrito Federal | Statement: [Brasília Metro, operator, Companhia do Metropolitano do Distrito Federal]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Companhia do Metropolitano do Distrito Federal
Context triple: [Brasília Metro, operator, Companhia do Metropolitano do Distrito Federal]

A. CBTU (Companhia Brasileira de Trens Urbanos)
CBTU (Companhia Brasileira de Trens Urbanos) is a Brazilian federal state-owned company responsible for operating and managing urban rail and metro systems in several major cities across Brazil.
B. São Paulo State Secretariat of Metropolitan Transport
The São Paulo State Secretariat of Metropolitan Transport is a government body responsible for planning, coordinating, and overseeing metropolitan public transportation systems within the state of São Paulo, Brazil.
C. São Paulo Municipal Transport Secretariat
The São Paulo Municipal Transport Secretariat is the city government department responsible for planning, regulating, and overseeing public transportation and mobility policies in São Paulo, Brazil.
D. CPTM commuter rail
CPTM commuter rail is a suburban rail network serving the São Paulo metropolitan area, connecting the city to its surrounding municipalities.
E. Metrovías S.A.
Metrovías S.A. is an Argentine private company that operates and manages public transportation systems, most notably the Buenos Aires Underground (Subte) and associated 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: Companhia do Metropolitano do Distrito Federal
Triple: [Brasília Metro, operator, Companhia do Metropolitano do Distrito Federal]

Generated description

Companhia do Metropolitano do Distrito Federal is the public company responsible for operating and managing the metro system serving Brazil’s Federal District, including the capital Brasília.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Companhia do Metropolitano do Distrito Federal
Target entity description: Companhia do Metropolitano do Distrito Federal is the public company responsible for operating and managing the metro system serving Brazil’s Federal District, including the capital Brasília.

A. CBTU (Companhia Brasileira de Trens Urbanos)
CBTU (Companhia Brasileira de Trens Urbanos) is a Brazilian federal state-owned company responsible for operating and managing urban rail and metro systems in several major cities across Brazil.
B. São Paulo State Secretariat of Metropolitan Transport
The São Paulo State Secretariat of Metropolitan Transport is a government body responsible for planning, coordinating, and overseeing metropolitan public transportation systems within the state of São Paulo, Brazil.
C. São Paulo Municipal Transport Secretariat
The São Paulo Municipal Transport Secretariat is the city government department responsible for planning, regulating, and overseeing public transportation and mobility policies in São Paulo, Brazil.
D. CPTM commuter rail
CPTM commuter rail is a suburban rail network serving the São Paulo metropolitan area, connecting the city to its surrounding municipalities.
E. Metrovías S.A.
Metrovías S.A. is an Argentine private company that operates and manages public transportation systems, most notably the Buenos Aires Underground (Subte) and associated rail services.
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_69e245b535808190adef8a9df3c584db`	completed	April 17, 2026, 2:37 p.m.
NER	Named-entity recognition	`batch_69f182eefd688190853977421540b2ce`	completed	April 29, 2026, 4:02 a.m.
NED1	Entity disambiguation (via context triple)	`batch_6a0bd37b1a0c819086bf665e96c2a540`	completed	May 19, 2026, 3:05 a.m.
NEDg	Description generation	`batch_6a0bd44a4434819093871158e49bafbc`	completed	May 19, 2026, 3:08 a.m.
NED2	Entity disambiguation (via description)	`batch_6a0bd4e53024819084592e995cc902e7`	completed	May 19, 2026, 3:11 a.m.

Created at: April 17, 2026, 3:50 p.m.