Triple

T2270964
Position Surface form Disambiguated ID Type / Status
Subject Moscow tram network E50655 entity
Predicate hasRollingStockManufacturer P4022 FINISHED
Object PK Transport Systems
PK Transport Systems is a Russian manufacturer of trams and other urban rail vehicles used in public transportation networks such as Moscow’s.
 E251762 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: PK Transport Systems | Statement: [Moscow tram network, hasRollingStockManufacturer, PK Transport Systems]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: PK Transport Systems
Context triple: [Moscow tram network, hasRollingStockManufacturer, PK Transport Systems]
  • A. Para Transpo
    Para Transpo is Ottawa’s specialized door-to-door public transit service providing accessible transportation for people with disabilities who cannot use conventional buses.
  • B. Greenway Public Transportation
    Greenway Public Transportation is a regional public transit agency providing bus and demand-response services in and around Newton, North Carolina.
  • C. C-TRAN
    C-TRAN is the public transit agency serving Clark County and the Vancouver, Washington area, providing bus and express services often coordinated with Portland’s TriMet system.
  • D. StarMetro public transit system
    StarMetro public transit system is the city-operated bus and paratransit network serving residents, students, and visitors throughout Tallahassee, Florida.
  • E. Unitrans bus system
    The Unitrans bus system is a public transit service in Davis, California, primarily operated by UC Davis students and serving both the university campus and the surrounding community.
  • 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: PK Transport Systems
Triple: [Moscow tram network, hasRollingStockManufacturer, PK Transport Systems]
Generated description
PK Transport Systems is a Russian manufacturer of trams and other urban rail vehicles used in public transportation networks such as Moscow’s.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: PK Transport Systems
Target entity description: PK Transport Systems is a Russian manufacturer of trams and other urban rail vehicles used in public transportation networks such as Moscow’s.
  • A. Para Transpo
    Para Transpo is Ottawa’s specialized door-to-door public transit service providing accessible transportation for people with disabilities who cannot use conventional buses.
  • B. Greenway Public Transportation
    Greenway Public Transportation is a regional public transit agency providing bus and demand-response services in and around Newton, North Carolina.
  • C. C-TRAN
    C-TRAN is the public transit agency serving Clark County and the Vancouver, Washington area, providing bus and express services often coordinated with Portland’s TriMet system.
  • D. StarMetro public transit system
    StarMetro public transit system is the city-operated bus and paratransit network serving residents, students, and visitors throughout Tallahassee, Florida.
  • E. Unitrans bus system
    The Unitrans bus system is a public transit service in Davis, California, primarily operated by UC Davis students and serving both the university campus and the surrounding community.
  • 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_69a88b05910c8190a9a2b1ff230c85f9 completed March 4, 2026, 7:41 p.m.
NER Named-entity recognition batch_69abc1c0de488190876b644cdaa41637 completed March 7, 2026, 6:12 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae71d97a108190a26ffd20fac91a7e completed March 9, 2026, 7:08 a.m.
NEDg Description generation batch_69ae73a4bdd08190bb9fff64ffdbeed6 completed March 9, 2026, 7:15 a.m.
NED2 Entity disambiguation (via description) batch_69ae776fdfb48190ae8731002c537458 completed March 9, 2026, 7:32 a.m.
Created at: March 4, 2026, 7:48 p.m.