Triple

T8947251
Position Surface form Disambiguated ID Type / Status
Subject RTA Waterfront Line E213250 entity
Predicate operator P179 FINISHED
Object GCRTA
GCRTA (Greater Cleveland Regional Transit Authority) is the public transportation agency serving the Cleveland, Ohio metropolitan area with bus, rail, and paratransit services.
 E768410 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: GCRTA | Statement: [RTA Waterfront Line, operator, GCRTA]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: GCRTA
Context triple: [RTA Waterfront Line, operator, GCRTA]
  • A. Chicago Transit Authority
    The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
  • B. Madison Metro
    Madison Metro is the primary public bus transit system serving the city of Madison, Wisconsin and its surrounding communities.
  • C. Jackson Area Transportation Authority
    Jackson Area Transportation Authority is the public transit agency that operates bus and related transportation services in and around Jackson, Michigan.
  • D. Chicago Surface Lines
    Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
  • E. Sangamon Mass Transit District
    Sangamon Mass Transit District is the primary public bus transportation agency serving Springfield and surrounding areas in Sangamon County, Illinois.
  • 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: GCRTA
Triple: [RTA Waterfront Line, operator, GCRTA]
Generated description
GCRTA (Greater Cleveland Regional Transit Authority) is the public transportation agency serving the Cleveland, Ohio metropolitan area with bus, rail, and paratransit services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: GCRTA
Target entity description: GCRTA (Greater Cleveland Regional Transit Authority) is the public transportation agency serving the Cleveland, Ohio metropolitan area with bus, rail, and paratransit services.
  • A. Chicago Transit Authority
    The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
  • B. Madison Metro
    Madison Metro is the primary public bus transit system serving the city of Madison, Wisconsin and its surrounding communities.
  • C. Jackson Area Transportation Authority
    Jackson Area Transportation Authority is the public transit agency that operates bus and related transportation services in and around Jackson, Michigan.
  • D. Chicago Surface Lines
    Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
  • E. Sangamon Mass Transit District
    Sangamon Mass Transit District is the primary public bus transportation agency serving Springfield and surrounding areas in Sangamon County, Illinois.
  • 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_69ca839843408190a39069a029a89f15 completed March 30, 2026, 2:07 p.m.
NER Named-entity recognition batch_69cc66deb8ec819087a9c5eddd24c08a completed April 1, 2026, 12:29 a.m.
NED1 Entity disambiguation (via context triple) batch_69cfc2022e30819089ba08f494a3a66f completed April 3, 2026, 1:34 p.m.
NEDg Description generation batch_69cfc27bae88819094bcfdf10e89018b completed April 3, 2026, 1:36 p.m.
NED2 Entity disambiguation (via description) batch_69cfc61d26fc8190817b430cb6fa9646 completed April 3, 2026, 1:52 p.m.
Created at: March 30, 2026, 6:59 p.m.