Triple

T7331419
Position Surface form Disambiguated ID Type / Status
Subject Washington Square (Brookline) E169008 entity
Predicate hasTransitStop P15438 FINISHED
Object Washington Square station (MBTA)
Washington Square station (MBTA) is a light rail stop on the Green Line C branch serving the Washington Square area of Brookline, Massachusetts.
E658567 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 Square station (MBTA) | Statement: [Washington Square (Brookline), hasTransitStop, Washington Square station (MBTA)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Washington Square station (MBTA)
Context triple: [Washington Square (Brookline), hasTransitStop, Washington Square station (MBTA)]
  • A. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • B. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • C. Harvard Square MBTA station
    Harvard Square MBTA station is a major Red Line subway and bus hub located in the historic Harvard Square area of Cambridge, Massachusetts, serving Harvard University and the surrounding neighborhood.
  • D. Massachusetts Avenue station
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
  • E. Beacon Hill light rail station
    Beacon Hill light rail station is an underground Link light rail stop in Seattle, Washington, serving the Beacon Hill neighborhood with rapid transit connections to downtown and other parts of the city.
  • 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 Square station (MBTA)
Triple: [Washington Square (Brookline), hasTransitStop, Washington Square station (MBTA)]
Generated description
Washington Square station (MBTA) is a light rail stop on the Green Line C branch serving the Washington Square area of Brookline, Massachusetts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Washington Square station (MBTA)
Target entity description: Washington Square station (MBTA) is a light rail stop on the Green Line C branch serving the Washington Square area of Brookline, Massachusetts.
  • A. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • B. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • C. Harvard Square MBTA station
    Harvard Square MBTA station is a major Red Line subway and bus hub located in the historic Harvard Square area of Cambridge, Massachusetts, serving Harvard University and the surrounding neighborhood.
  • D. Massachusetts Avenue station
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
  • E. Beacon Hill light rail station
    Beacon Hill light rail station is an underground Link light rail stop in Seattle, Washington, serving the Beacon Hill neighborhood with rapid transit connections to downtown and other parts of the city.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasTransitStop
Context triple: [Washington Square (Brookline), hasTransitStop, Washington Square station (MBTA)]
  • A. hasTransitAccessTo
    Indicates that one place or entity is reachable from another via public or shared transportation services.
  • B. hasPublicTransportStop chosen
    Indicates that a location or area contains or is served by a public transport stop, such as a bus, tram, or train stop.
  • C. hasStopNear
    Indicates that one entity has a stop or stopping point located in close proximity to another entity.
  • D. hasBusInterchange
    Indicates that one transport-related entity includes, contains, or is associated with a bus interchange facility.
  • E. hasIntermediateStation
    Indicates that a route, journey, or connection includes a station that lies between its starting point and its final destination.
  • 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_69c68a568a6481908f11e20db7bc8446 completed March 27, 2026, 1:47 p.m.
NER Named-entity recognition batch_69c6f347f25081908e6086d4073295f5 completed March 27, 2026, 9:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7fa7f71888190a5025355c303c41d completed March 28, 2026, 3:57 p.m.
NEDg Description generation batch_69c7fc13167c819084ff05d780fc4394 completed March 28, 2026, 4:04 p.m.
NED2 Entity disambiguation (via description) batch_69c7fd453fac8190862000bd670b5695 completed March 28, 2026, 4:09 p.m.
PD Predicate disambiguation batch_69c6f028fd748190b2ea5c3081958a42 completed March 27, 2026, 9:01 p.m.
Created at: March 27, 2026, 3:03 p.m.