Triple

T7015983
Position Surface form Disambiguated ID Type / Status
Subject Kolkata Metro E162700 entity
Predicate lineColor P60 FINISHED
Object East–West corridor – Green Line
The East–West corridor – Green Line is a major Kolkata Metro route that runs east–west across the city, connecting key residential and commercial areas and including India’s first underwater metro tunnel beneath the Hooghly River.
E635144 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: East–West corridor – Green Line | Statement: [Kolkata Metro, lineColor, East–West corridor – Green Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: East–West corridor – Green Line
Context triple: [Kolkata Metro, lineColor, East–West corridor – Green Line]
  • A. The Green Line
    The Green Line is a famous 1905 Fauvist portrait by Henri Matisse depicting his wife Amélie with a bold green stripe dividing her face, exemplifying his radical use of color and form.
  • B. Northwest–East Line
    The Northwest–East Line is the primary rapid transit route of Baltimore's Metro SubwayLink system, running across the city from the northwest suburbs toward the eastern side.
  • C. Heritage Corridor line
    The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
  • D. Red Line and Green Line
    Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
  • E. Green (as part of Green Line)
    Green (as part of the Green Line) is the color designation used for Chicago's Green Line rapid transit route, including its Englewood Branch, within the Chicago 'L' 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: East–West corridor – Green Line
Triple: [Kolkata Metro, lineColor, East–West corridor – Green Line]
Generated description
The East–West corridor – Green Line is a major Kolkata Metro route that runs east–west across the city, connecting key residential and commercial areas and including India’s first underwater metro tunnel beneath the Hooghly River.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: East–West corridor – Green Line
Target entity description: The East–West corridor – Green Line is a major Kolkata Metro route that runs east–west across the city, connecting key residential and commercial areas and including India’s first underwater metro tunnel beneath the Hooghly River.
  • A. The Green Line
    The Green Line is a famous 1905 Fauvist portrait by Henri Matisse depicting his wife Amélie with a bold green stripe dividing her face, exemplifying his radical use of color and form.
  • B. Northwest–East Line
    The Northwest–East Line is the primary rapid transit route of Baltimore's Metro SubwayLink system, running across the city from the northwest suburbs toward the eastern side.
  • C. Heritage Corridor line
    The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
  • D. Red Line and Green Line
    Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
  • E. Green (as part of Green Line)
    Green (as part of the Green Line) is the color designation used for Chicago's Green Line rapid transit route, including its Englewood Branch, within the Chicago 'L' 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_69c6885a127c8190867b059bdccf13ff completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6e1d43e948190843f1cef3ce2004e completed March 27, 2026, 8 p.m.
NED1 Entity disambiguation (via context triple) batch_69c76a5655d48190a2df556f63add35d completed March 28, 2026, 5:42 a.m.
NEDg Description generation batch_69c76b9702d4819099f873b37fad309b completed March 28, 2026, 5:48 a.m.
NED2 Entity disambiguation (via description) batch_69c76c10303c8190a08f1728da6ebcd2 completed March 28, 2026, 5:50 a.m.
Created at: March 27, 2026, 2:34 p.m.