Triple

T2290563
Position Surface form Disambiguated ID Type / Status
Subject Crystal City station (Washington Metro) E51491 entity
Predicate connectsTo P845 FINISHED
Object Crystal City Underground (pedestrian network)
Crystal City Underground is an extensive network of interconnected underground walkways, shops, and services in Arlington, Virginia, linking buildings and transit in the Crystal City area.
 E254116 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: Crystal City Underground (pedestrian network) | Statement: [Crystal City station (Washington Metro), connectsTo, Crystal City Underground (pedestrian network)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Crystal City Underground (pedestrian network)
Context triple: [Crystal City station (Washington Metro), connectsTo, Crystal City Underground (pedestrian network)]
  • A. PATH underground walkway system
    The PATH underground walkway system is a vast network of interconnected pedestrian tunnels and shopping concourses beneath downtown Toronto, linking office towers, transit hubs, and major attractions.
  • B. Downtown Tunnel
    The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
  • C. CITYPARK
    CITYPARK is a modern, soccer-specific stadium in downtown St. Louis that serves as the home of Major League Soccer club St. Louis City SC.
  • D. Beltline
    Beltline is a densely populated, urban inner-city neighbourhood in Calgary known for its high-rise residences, nightlife, and cultural amenities just south of the downtown core.
  • E. Terry Schrunk Plaza
    Terry Schrunk Plaza is a public square and park in downtown Portland, Oregon, known for hosting civic events and being surrounded by key government buildings.
  • 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: Crystal City Underground (pedestrian network)
Triple: [Crystal City station (Washington Metro), connectsTo, Crystal City Underground (pedestrian network)]
Generated description
Crystal City Underground is an extensive network of interconnected underground walkways, shops, and services in Arlington, Virginia, linking buildings and transit in the Crystal City area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Crystal City Underground (pedestrian network)
Target entity description: Crystal City Underground is an extensive network of interconnected underground walkways, shops, and services in Arlington, Virginia, linking buildings and transit in the Crystal City area.
  • A. PATH underground walkway system
    The PATH underground walkway system is a vast network of interconnected pedestrian tunnels and shopping concourses beneath downtown Toronto, linking office towers, transit hubs, and major attractions.
  • B. Downtown Tunnel
    The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
  • C. CITYPARK
    CITYPARK is a modern, soccer-specific stadium in downtown St. Louis that serves as the home of Major League Soccer club St. Louis City SC.
  • D. Beltline
    Beltline is a densely populated, urban inner-city neighbourhood in Calgary known for its high-rise residences, nightlife, and cultural amenities just south of the downtown core.
  • E. Terry Schrunk Plaza
    Terry Schrunk Plaza is a public square and park in downtown Portland, Oregon, known for hosting civic events and being surrounded by key government buildings.
  • 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_69a88b09c644819090b503456d96bf70 completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc27536588190a74731b5537c90ee completed March 7, 2026, 6:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae7f210bb881909086b86b2c3017a7 completed March 9, 2026, 8:04 a.m.
NEDg Description generation batch_69ae8018c2e88190aaacaad9adc442cf completed March 9, 2026, 8:08 a.m.
NED2 Entity disambiguation (via description) batch_69ae806fd8008190bfd6c6bcd1d0ddbd completed March 9, 2026, 8:10 a.m.
Created at: March 4, 2026, 7:48 p.m.