Triple

T21691184
Position Surface form Disambiguated ID Type / Status
Subject Medinah station E535371 entity
Predicate hasSignage P5950 FINISHED
Object Metra standard signage
Metra standard signage is the uniform system of signs used across Metra commuter rail stations to provide consistent branding, wayfinding, and passenger information.
E1497246 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: Metra standard signage | Statement: [Medinah station, hasSignage, Metra standard signage]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Metra standard signage
Context triple: [Medinah station, hasSignage, Metra standard signage]
  • A. RATP standard metro signage
    RATP standard metro signage is the unified system of visual signs, symbols, and typography used across the Paris Métro network to guide passengers and ensure consistent wayfinding.
  • B. MTA Graphics Standard signage
    MTA Graphics Standard signage is the unified visual design system used across New York City’s subway and transit network, featuring consistent typography, colors, and symbols to guide passengers.
  • C. MBTA standard signage
    MBTA standard signage is the uniform system of wayfinding signs, symbols, and typography used across Boston’s public transit network to guide passengers and provide consistent information.
  • D. Metra stations
    Metra stations are passenger rail stops in the Chicago metropolitan area that serve as boarding and alighting points for the region’s commuter rail network.
  • E. Metro-North standard signage
    Metro-North standard signage is the uniform system of signs used across the Metro-North Railroad network to provide consistent wayfinding, station identification, and passenger information.
  • 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: Metra standard signage
Triple: [Medinah station, hasSignage, Metra standard signage]
Generated description
Metra standard signage is the uniform system of signs used across Metra commuter rail stations to provide consistent branding, wayfinding, and passenger information.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Metra standard signage
Target entity description: Metra standard signage is the uniform system of signs used across Metra commuter rail stations to provide consistent branding, wayfinding, and passenger information.
  • A. RATP standard metro signage
    RATP standard metro signage is the unified system of visual signs, symbols, and typography used across the Paris Métro network to guide passengers and ensure consistent wayfinding.
  • B. MTA Graphics Standard signage
    MTA Graphics Standard signage is the unified visual design system used across New York City’s subway and transit network, featuring consistent typography, colors, and symbols to guide passengers.
  • C. MBTA standard signage
    MBTA standard signage is the uniform system of wayfinding signs, symbols, and typography used across Boston’s public transit network to guide passengers and provide consistent information.
  • D. Metra stations
    Metra stations are passenger rail stops in the Chicago metropolitan area that serve as boarding and alighting points for the region’s commuter rail network.
  • E. Metro-North standard signage
    Metro-North standard signage is the uniform system of signs used across the Metro-North Railroad network to provide consistent wayfinding, station identification, and passenger information.
  • 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_69e0c46a6ee481908836e1420fb78c9b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef96cfaab08190b400e1538afc8c43 completed April 27, 2026, 5:03 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a1e25541c8190a1194149a8961f70 completed May 17, 2026, 7:59 p.m.
NEDg Description generation batch_6a0a1ee2662c8190887c9fd2073fcd12 completed May 17, 2026, 8:02 p.m.
NED2 Entity disambiguation (via description) batch_6a0a1fb328e081908b39b4c85cb23d1e completed May 17, 2026, 8:06 p.m.
Created at: April 16, 2026, 6:45 p.m.