Triple

T17233314
Position Surface form Disambiguated ID Type / Status
Subject Tom Hunter station E418299 entity
Predicate partOfExtension P35 FINISHED
Object LYNX Blue Line Northeast Corridor extension
The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
E1257027 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: LYNX Blue Line Northeast Corridor extension | Statement: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: LYNX Blue Line Northeast Corridor extension
Context triple: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
  • A. Northeast Corridor extension to Virginia
    The Northeast Corridor extension to Virginia is the southern continuation of Amtrak’s primary high-speed rail route, carrying intercity and commuter trains from Washington, D.C. through northern and central Virginia.
  • B. Northeast Corridor Improvement Program
    The Northeast Corridor Improvement Program was a major U.S. rail infrastructure initiative launched in the 1970s to modernize and upgrade the heavily used passenger rail line between Boston, New York, and Washington, D.C.
  • C. Green Line Extension
    The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
  • D. Green Line southern extension
    The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
  • E. Mattapan High-Speed Line
    The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
  • 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: LYNX Blue Line Northeast Corridor extension
Triple: [Tom Hunter station, partOfExtension, LYNX Blue Line Northeast Corridor extension]
Generated description
The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: LYNX Blue Line Northeast Corridor extension
Target entity description: The LYNX Blue Line Northeast Corridor extension is a light rail expansion project in Charlotte, North Carolina, extending the existing Blue Line service to connect Uptown with the University City area and other northeastern neighborhoods.
  • A. Northeast Corridor extension to Virginia
    The Northeast Corridor extension to Virginia is the southern continuation of Amtrak’s primary high-speed rail route, carrying intercity and commuter trains from Washington, D.C. through northern and central Virginia.
  • B. Northeast Corridor Improvement Program
    The Northeast Corridor Improvement Program was a major U.S. rail infrastructure initiative launched in the 1970s to modernize and upgrade the heavily used passenger rail line between Boston, New York, and Washington, D.C.
  • C. Green Line Extension
    The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
  • D. Green Line southern extension
    The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
  • E. Mattapan High-Speed Line
    The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
  • 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_69d886d8e96081909870bff6c3d0bf09 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e42df9558481909e2e50ae0b02acf7 completed April 19, 2026, 1:20 a.m.
NED1 Entity disambiguation (via context triple) batch_6a016760873c8190bab70ad4ca0c6d8e completed May 11, 2026, 5:21 a.m.
NEDg Description generation batch_6a016838367c8190b5117d5314f71a16 completed May 11, 2026, 5:25 a.m.
NED2 Entity disambiguation (via description) batch_6a0168976af88190a5f839a93538ac6f completed May 11, 2026, 5:26 a.m.
Created at: April 10, 2026, 5:39 a.m.