Triple

T3492
Position Surface form Disambiguated ID Type / Status
Subject MBTA Fitchburg Line E65 entity
Predicate hasStation P35 FINISHED
Object Porter
Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
E516 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: Porter | Statement: [MBTA Fitchburg Line, hasStation, Porter]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Porter
Context triple: [MBTA Fitchburg Line, hasStation, Porter]
  • A. Douglas
    Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
  • B. Andrew
    Andrew is a masculine given name of Greek origin meaning "manly" or "brave," widely used in English-speaking countries and beyond.
  • C. Bolt Beranek and Newman
    Bolt Beranek and Newman was a pioneering American research and engineering firm best known for its foundational role in developing the ARPANET, a precursor to the modern internet.
  • D. Rockwell Cage
    Rockwell Cage is an indoor athletic facility at the Massachusetts Institute of Technology that serves as the primary venue for the MIT Engineers’ home sports events.
  • E. Carnegie
    Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
  • 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: Porter
Triple: [MBTA Fitchburg Line, hasStation, Porter]
Generated description
Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Porter
Target entity description: Porter is a transit station in Cambridge, Massachusetts that serves both MBTA commuter rail and Red Line subway services.
  • A. Douglas
    Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
  • B. Andrew
    Andrew is a masculine given name of Greek origin meaning "manly" or "brave," widely used in English-speaking countries and beyond.
  • C. Bolt Beranek and Newman
    Bolt Beranek and Newman was a pioneering American research and engineering firm best known for its foundational role in developing the ARPANET, a precursor to the modern internet.
  • D. Rockwell Cage
    Rockwell Cage is an indoor athletic facility at the Massachusetts Institute of Technology that serves as the primary venue for the MIT Engineers’ home sports events.
  • E. Carnegie
    Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasStation
Context triple: [MBTA Fitchburg Line, hasStation, Porter]
  • A. hasNotableFacility
    Indicates that an entity possesses or hosts a facility that is of particular significance, prominence, or interest.
  • B. hasRegion
    Indicates that an entity includes, contains, or is associated with a specific geographic or administrative region as part of its scope or structure.
  • C. hasRepresentationIn
    Indicates that one entity is represented, depicted, or encoded within another entity, such as a concept, object, or data structure having a corresponding representation in a specific medium or context.
  • D. hasPart chosen
    Indicates that one entity is a component, segment, or constituent part of another entity.
  • E. hasOnlinePlatform
    Indicates that an entity operates, maintains, or is associated with a presence or service on an online platform.
  • 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_69a238d6b47881909e68288aed2fd858 completed Feb. 28, 2026, 12:37 a.m.
NER Named-entity recognition batch_69a23bcc8eb48190b897cc331563980a completed Feb. 28, 2026, 12:50 a.m.
NED1 Entity disambiguation (via context triple) batch_69a23d860c2881909010e0310acaf10f completed Feb. 28, 2026, 12:57 a.m.
NEDg Description generation batch_69a23ffe6b4081908f9d04b169a7bed8 completed Feb. 28, 2026, 1:08 a.m.
NED2 Entity disambiguation (via description) batch_69a2406bedd081909e8704cef5ab08dd completed Feb. 28, 2026, 1:10 a.m.
PD Predicate disambiguation batch_69a23994309081909ff3e869deef2156 completed Feb. 28, 2026, 12:40 a.m.
Created at: Feb. 28, 2026, 12:40 a.m.