Triple

T20923429
Position Surface form Disambiguated ID Type / Status
Subject Belmont station (CTA North Side Main Line) E515272 entity
Predicate connectsToBusRoute P136848 FINISHED
Object CTA Route 77 Belmont
CTA Route 77 Belmont is a Chicago Transit Authority bus line that runs along Belmont Avenue, providing east–west service across several North Side neighborhoods and connections to multiple ‘L’ stations.
E1458542 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: CTA Route 77 Belmont | Statement: [Belmont station (CTA North Side Main Line), connectsToBusRoute, CTA Route 77 Belmont]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: CTA Route 77 Belmont
Context triple: [Belmont station (CTA North Side Main Line), connectsToBusRoute, CTA Route 77 Belmont]
  • A. CTA Route 72 North
    CTA Route 72 North is a Chicago Transit Authority bus line that runs along North Avenue, connecting several North Side neighborhoods and major transit hubs.
  • B. CTA Route 50 Damen
    CTA Route 50 Damen is a Chicago Transit Authority bus route that runs primarily along Damen Avenue, connecting multiple neighborhoods on the city’s North and South Sides.
  • C. CTA Route 201 Central/Ridge
    CTA Route 201 Central/Ridge is a Chicago Transit Authority bus route serving Evanston and nearby North Shore communities, connecting key local destinations and transit hubs including the Davis station.
  • D. CTA Route 9 Ashland
    CTA Route 9 Ashland is a major Chicago Transit Authority bus line that runs along Ashland Avenue, providing north–south service through numerous neighborhoods across the city.
  • E. CTA Route 56 Milwaukee
    CTA Route 56 Milwaukee is a Chicago Transit Authority bus line that primarily runs along Milwaukee Avenue, connecting neighborhoods northwest of downtown Chicago.
  • 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: CTA Route 77 Belmont
Triple: [Belmont station (CTA North Side Main Line), connectsToBusRoute, CTA Route 77 Belmont]
Generated description
CTA Route 77 Belmont is a Chicago Transit Authority bus line that runs along Belmont Avenue, providing east–west service across several North Side neighborhoods and connections to multiple ‘L’ stations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: CTA Route 77 Belmont
Target entity description: CTA Route 77 Belmont is a Chicago Transit Authority bus line that runs along Belmont Avenue, providing east–west service across several North Side neighborhoods and connections to multiple ‘L’ stations.
  • A. CTA Route 72 North
    CTA Route 72 North is a Chicago Transit Authority bus line that runs along North Avenue, connecting several North Side neighborhoods and major transit hubs.
  • B. CTA Route 50 Damen
    CTA Route 50 Damen is a Chicago Transit Authority bus route that runs primarily along Damen Avenue, connecting multiple neighborhoods on the city’s North and South Sides.
  • C. CTA Route 201 Central/Ridge
    CTA Route 201 Central/Ridge is a Chicago Transit Authority bus route serving Evanston and nearby North Shore communities, connecting key local destinations and transit hubs including the Davis station.
  • D. CTA Route 9 Ashland
    CTA Route 9 Ashland is a major Chicago Transit Authority bus line that runs along Ashland Avenue, providing north–south service through numerous neighborhoods across the city.
  • E. CTA Route 56 Milwaukee
    CTA Route 56 Milwaukee is a Chicago Transit Authority bus line that primarily runs along Milwaukee Avenue, connecting neighborhoods northwest of downtown Chicago.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: connectsToBusRoute
Context triple: [Belmont station (CTA North Side Main Line), connectsToBusRoute, CTA Route 77 Belmont]
  • A. connectsToBusAt chosen
    Indicates that one entity has an access or transfer point where it links to a bus service at a specific location or stop.
  • B. accessByBusFrom
    Indicates that one location can be reached from another location using a bus as the mode of transportation.
  • C. situatedOnTransportRoute
    Indicates that one entity is located along, on, or directly adjacent to a specified transport route (such as a road, railway, or shipping lane).
  • D. associatedWithTransitLine
    Indicates that an entity has a connection or linkage to a specific transit line, such as being part of, served by, or otherwise related to that line.
  • E. isPublicTransportRoute
    Indicates that a given route is designated and operated as part of a public transportation system available for general use.
  • 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_69e0b4fb431c8190b9d40e6a72f0cc87 completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e6f6504c30819084e8cabab98d08f7 completed April 21, 2026, 4 a.m.
NED1 Entity disambiguation (via context triple) batch_6a091fca98948190b7a5920b507bd0ab completed May 17, 2026, 1:54 a.m.
NEDg Description generation batch_6a09242314bc8190a16b8c43f1720c7c completed May 17, 2026, 2:12 a.m.
NED2 Entity disambiguation (via description) batch_6a0924e6ae648190a89a63ced5330db2 completed May 17, 2026, 2:16 a.m.
PD Predicate disambiguation batch_69e5c9af1fe08190953366a466950140 completed April 20, 2026, 6:37 a.m.
Created at: April 16, 2026, 12:49 p.m.