Triple

T9081850
Position Surface form Disambiguated ID Type / Status
Subject Langley Park, Maryland E217646 entity
Predicate plannedTransit P87097 FINISHED
Object Purple Line light rail corridor
The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
E784353 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: Purple Line light rail corridor | Statement: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Purple Line light rail corridor
Context triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
  • A. Purple Line Express
    Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
  • B. Central Light Rail Line
    The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
  • C. Purple Line
    The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
  • D. Purple Line
    The Purple Line is a major rapid transit corridor of Bengaluru’s Namma Metro system, connecting key residential and commercial areas across the city.
  • E. Purple Line
    The Purple Line is a light rail route in Houston, Texas, that serves as part of the METRORail system, connecting downtown with southeastern neighborhoods and key destinations.
  • 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: Purple Line light rail corridor
Triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
Generated description
The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Purple Line light rail corridor
Target entity description: The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
  • A. Purple Line Express
    Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
  • B. Central Light Rail Line
    The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
  • C. Purple Line
    The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
  • D. Purple Line
    The Purple Line is a major rapid transit corridor of Bengaluru’s Namma Metro system, connecting key residential and commercial areas across the city.
  • E. Purple Line
    The Purple Line is a light rail route in Houston, Texas, that serves as part of the METRORail system, connecting downtown with southeastern neighborhoods and key destinations.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: plannedTransit
Context triple: [Langley Park, Maryland, plannedTransit, Purple Line light rail corridor]
  • A. transportPlanned
    Indicates that an arrangement has been made for something or someone to be transported from one place to another.
  • B. transportationPlanned
    Indicates that an arrangement has been made for someone or something to be transported from one place to another.
  • C. publicTransit
    Indicates that one entity provides or is connected via shared, scheduled transportation services (such as buses, trains, or subways) that are available for use by the general public.
  • D. providesUrbanTransport
    Indicates that one entity supplies or operates transportation services within an urban or city environment for another entity or the public.
  • E. plannedVia
    Indicates that something is arranged, organized, or scheduled by means of a particular method, process, or intermediary.
  • F. None of above. chosen

Provenance (7 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_69ca83d7a0388190ba1af89ed7ba36f9 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cc9608a82481908918821884ba5796 completed April 1, 2026, 3:50 a.m.
NED1 Entity disambiguation (via context triple) batch_69d05bed784c8190aa538a037bb2eeb8 completed April 4, 2026, 12:31 a.m.
NEDg Description generation batch_69d05fca234481909a1b6547e014f2d6 completed April 4, 2026, 12:48 a.m.
NED2 Entity disambiguation (via description) batch_69d05feb2cc48190983d538b2a88b620 completed April 4, 2026, 12:48 a.m.
PD Predicate disambiguation batch_69cc65fa79bc81908b46f05c8bba920f completed April 1, 2026, 12:25 a.m.
PDg Predicate description generation batch_69cc6a3c78388190a7436acc0e44ff55 completed April 1, 2026, 12:43 a.m.
Created at: March 30, 2026, 7:13 p.m.