Triple

T14890201
Position Surface form Disambiguated ID Type / Status
Subject MBTA Silver Line at South Station E359734 entity
Predicate isKeyStopFor P3386 FINISHED
Object Silver Line service to Logan Airport
Silver Line service to Logan Airport is a bus rapid transit route in Boston that connects downtown, via South Station, to Logan International Airport terminals.
E186300 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: Silver Line service to Logan Airport | Statement: [MBTA Silver Line at South Station, isKeyStopFor, Silver Line service to Logan Airport]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Silver Line service to Logan Airport
Context triple: [MBTA Silver Line at South Station, isKeyStopFor, Silver Line service to Logan Airport]
  • A. The Silver Line
    The Silver Line is a UK-based helpline charity that offers information, friendship, and emotional support to older people to combat loneliness and isolation.
  • B. Metro Silver Line
    The Metro Silver Line is a former branding used for certain Los Angeles County Metropolitan Transportation Authority bus services, particularly those operating as part of the region’s bus rapid transit network.
  • C. Silver Line
    The Silver Line is one of the urban cable car routes in La Paz–El Alto’s Mi Teleférico aerial transit system, known for its silver color designation.
  • D. Silver Line
    The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
  • E. Silver Line
    The Silver Line is a heritage streetcar route within the San Diego Trolley system that operates vintage vehicles primarily for downtown circulator service.
  • 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: Silver Line service to Logan Airport
Triple: [MBTA Silver Line at South Station, isKeyStopFor, Silver Line service to Logan Airport]
Generated description
Silver Line service to Logan Airport is a bus rapid transit route in Boston that connects downtown, via South Station, to Logan International Airport terminals.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Silver Line service to Logan Airport
Target entity description: Silver Line service to Logan Airport is a bus rapid transit route in Boston that connects downtown, via South Station, to Logan International Airport terminals.
  • A. The Silver Line
    The Silver Line is a UK-based helpline charity that offers information, friendship, and emotional support to older people to combat loneliness and isolation.
  • B. Metro Silver Line
    The Metro Silver Line is a former branding used for certain Los Angeles County Metropolitan Transportation Authority bus services, particularly those operating as part of the region’s bus rapid transit network.
  • C. Silver Line
    The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
  • D. Silver Line
    The Silver Line is one of the urban cable car routes in La Paz–El Alto’s Mi Teleférico aerial transit system, known for its silver color designation.
  • E. Silver Line chosen
    The Silver Line is a bus rapid transit service in Boston, Massachusetts, operated by the MBTA and serving key corridors including the Seaport District and Logan Airport.
  • F. None of above.

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_69d827980cbc8190a0c569ae3940a1d9 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69ded5f6cf5c8190b6b28f58fafe5d59 completed April 15, 2026, 12:04 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe6b61407481908a618d14c56d2abf completed May 8, 2026, 11:01 p.m.
NEDg Description generation batch_69fe6e21bdf481908dba4b745ed4be65 completed May 8, 2026, 11:13 p.m.
NED2 Entity disambiguation (via description) batch_69fe6ee69860819096a2448ab813dc1d completed May 8, 2026, 11:16 p.m.
Created at: April 10, 2026, 2:09 a.m.