Triple

T11102
Position Surface form Disambiguated ID Type / Status
Subject Washington Metro E225 entity
Predicate safetyAuthority P125 FINISHED
Object Washington Metrorail Safety Commission
The Washington Metrorail Safety Commission is an independent oversight agency responsible for monitoring, investigating, and enforcing safety practices across the Washington, D.C. region’s Metrorail transit system.
E9931 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: Washington Metrorail Safety Commission | Statement: [Washington Metro, safetyAuthority, Washington Metrorail Safety Commission]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Washington Metrorail Safety Commission
Context triple: [Washington Metro, safetyAuthority, Washington Metrorail Safety Commission]
  • A. Washington Metropolitan Area Transit Authority
    The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
  • B. Washington Metro
    Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
  • C. Metropolitan Washington Airports Authority
    The Metropolitan Washington Airports Authority is an independent regional agency that manages and operates major airports serving the Washington, D.C. metropolitan area.
  • D. Metropolitan Police Department of the District of Columbia
    The Metropolitan Police Department of the District of Columbia is the primary law enforcement agency responsible for policing Washington, D.C., including its neighborhoods, major federal landmarks, and large-scale public events.
  • E. Union Station Redevelopment Corporation
    Union Station Redevelopment Corporation is a nonprofit organization responsible for managing, preserving, and overseeing the redevelopment of Washington, D.C.’s historic Union Station.
  • 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: Washington Metrorail Safety Commission
Triple: [Washington Metro, safetyAuthority, Washington Metrorail Safety Commission]
Generated description
The Washington Metrorail Safety Commission is an independent oversight agency responsible for monitoring, investigating, and enforcing safety practices across the Washington, D.C. region’s Metrorail transit system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Washington Metrorail Safety Commission
Target entity description: The Washington Metrorail Safety Commission is an independent oversight agency responsible for monitoring, investigating, and enforcing safety practices across the Washington, D.C. region’s Metrorail transit system.
  • A. Washington Metropolitan Area Transit Authority
    The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
  • B. Washington Metro
    Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
  • C. Metropolitan Washington Airports Authority
    The Metropolitan Washington Airports Authority is an independent regional agency that manages and operates major airports serving the Washington, D.C. metropolitan area.
  • D. Metropolitan Police Department of the District of Columbia
    The Metropolitan Police Department of the District of Columbia is the primary law enforcement agency responsible for policing Washington, D.C., including its neighborhoods, major federal landmarks, and large-scale public events.
  • E. Union Station Redevelopment Corporation
    Union Station Redevelopment Corporation is a nonprofit organization responsible for managing, preserving, and overseeing the redevelopment of Washington, D.C.’s historic Union Station.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: safetyAuthority
Context triple: [Washington Metro, safetyAuthority, Washington Metrorail Safety Commission]
  • A. supportsDiscipline
    Indicates that one entity provides assistance, resources, or endorsement that helps sustain or advance a particular discipline.
  • B. legalBasis chosen
    Indicates the legal rule, authority, or justification under which an action, decision, or status is established or carried out.
  • C. drivesOn
    Indicates that an entity uses or travels along a particular route, surface, or roadway as its path of movement.
  • D. allows
    Indicates that one entity grants permission, capability, or opportunity for another entity to perform an action or be in a certain state.
  • E. issuedBy
    Indicates that something (such as a document, order, or statement) has been formally created, authorized, or released by a particular agent or authority.
  • 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_69a23d7ad88c8190bffe8ab091d86642 completed Feb. 28, 2026, 12:57 a.m.
NER Named-entity recognition batch_69a242cd8fb481909562f114f4ce7700 completed Feb. 28, 2026, 1:20 a.m.
NED1 Entity disambiguation (via context triple) batch_69a26c120b98819087a09540c2a57366 completed Feb. 28, 2026, 4:16 a.m.
NEDg Description generation batch_69a26cf320908190a9c8b23e9cd9b5bd completed Feb. 28, 2026, 4:20 a.m.
NED2 Entity disambiguation (via description) batch_69a26e202e9c81909e0cd66a10314a76 completed Feb. 28, 2026, 4:25 a.m.
PD Predicate disambiguation batch_69a23fe6b0bc8190bcce9b74f2c5fb08 completed Feb. 28, 2026, 1:07 a.m.
Created at: Feb. 28, 2026, 1:02 a.m.