Triple

T35931
Position Surface form Disambiguated ID Type / Status
Subject Baltimore/Washington International Thurgood Marshall Airport E711 entity
Predicate hasGroundTransport P1298 FINISHED
Object Baltimore Light RailLink
Baltimore Light RailLink is a light rail transit system serving the Baltimore metropolitan area, connecting key locations including downtown Baltimore and Baltimore/Washington International Thurgood Marshall Airport.
E3252 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: Baltimore Light RailLink | Statement: [Baltimore/Washington International Thurgood Marshall Airport, hasGroundTransport, Baltimore Light RailLink]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Baltimore Light RailLink
Context triple: [Baltimore/Washington International Thurgood Marshall Airport, hasGroundTransport, Baltimore Light RailLink]
  • A. 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.
  • B. Virginia Railway Express
    Virginia Railway Express is a commuter rail service that connects Northern Virginia suburbs with Washington, D.C., primarily serving daily work commuters.
  • C. MBTA Red Line
    The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
  • D. SEPTA Subway–Surface Trolley Lines
    The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
  • E. Portland Streetcar
    Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
  • 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: Baltimore Light RailLink
Triple: [Baltimore/Washington International Thurgood Marshall Airport, hasGroundTransport, Baltimore Light RailLink]
Generated description
Baltimore Light RailLink is a light rail transit system serving the Baltimore metropolitan area, connecting key locations including downtown Baltimore and Baltimore/Washington International Thurgood Marshall Airport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Baltimore Light RailLink
Target entity description: Baltimore Light RailLink is a light rail transit system serving the Baltimore metropolitan area, connecting key locations including downtown Baltimore and Baltimore/Washington International Thurgood Marshall Airport.
  • A. 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.
  • B. Virginia Railway Express
    Virginia Railway Express is a commuter rail service that connects Northern Virginia suburbs with Washington, D.C., primarily serving daily work commuters.
  • C. MBTA Red Line
    The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
  • D. SEPTA Subway–Surface Trolley Lines
    The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
  • E. Portland Streetcar
    Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasGroundTransport
Context triple: [Baltimore/Washington International Thurgood Marshall Airport, hasGroundTransport, Baltimore Light RailLink]
  • A. hasGroundTransportation chosen
    Indicates that an entity provides, includes, or is connected to transportation services or options that operate on land (e.g., cars, buses, trains).
  • B. hasTransportationSystem
    Indicates that an entity possesses, operates, or is served by an organized system for transporting people or goods.
  • C. transports
    Indicates that one entity carries or conveys another entity from one place to another.
  • D. hasFerryService
    Indicates that there is an operational ferry connection or transport service available between the related locations or entities.
  • E. transportType
    Indicates the mode or means of transportation used in carrying something or someone from one place to another.
  • 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_69a247a8f6c08190bac804906d62ed5a completed Feb. 28, 2026, 1:40 a.m.
NER Named-entity recognition batch_69a24bb753f081909cd8b25cfb8e08af completed Feb. 28, 2026, 1:58 a.m.
NED1 Entity disambiguation (via context triple) batch_69a24e607c5c8190b10af5106685b3c6 completed Feb. 28, 2026, 2:09 a.m.
NEDg Description generation batch_69a24f2f57fc8190a525ac39c960f082 completed Feb. 28, 2026, 2:13 a.m.
NED2 Entity disambiguation (via description) batch_69a24fca983c8190a62b8820645d2d2c completed Feb. 28, 2026, 2:15 a.m.
PD Predicate disambiguation batch_69a24ab4a6908190b6f355415ffe7948 completed Feb. 28, 2026, 1:53 a.m.
Created at: Feb. 28, 2026, 1:46 a.m.