Triple

T4504079
Position Surface form Disambiguated ID Type / Status
Subject Lastochka E101289 entity
Predicate usedOn P2367 FINISHED
Object Saint Petersburg suburban railways
Saint Petersburg suburban railways are an extensive commuter rail network serving the greater Saint Petersburg metropolitan area, connecting the city with its surrounding suburbs and regional towns.
E448767 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: Saint Petersburg suburban railways | Statement: [Lastochka, usedOn, Saint Petersburg suburban railways]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Saint Petersburg suburban railways
Context triple: [Lastochka, usedOn, Saint Petersburg suburban railways]
  • A. Moscow Railway suburban network
    The Moscow Railway suburban network is an extensive commuter rail system serving Moscow and the surrounding Moscow Oblast, connecting the capital with numerous satellite towns and suburbs.
  • B. Paveletsky suburban railway line
    The Paveletsky suburban railway line is a commuter rail route serving suburban areas south of Moscow, connecting the city with surrounding towns and residential districts.
  • C. Saint Petersburg Metro
    The Saint Petersburg Metro is a major rapid transit system in Saint Petersburg, Russia, renowned for its deep underground stations and ornate, palace-like architecture.
  • D. Kaluzhsko–Rizhskaya Line
    The Kaluzhsko–Rizhskaya Line is a major line of the Moscow Metro system, running north–south through the city and serving several densely populated residential and commercial districts.
  • E. Volgograd Metrotram
    The Volgograd Metrotram is a hybrid light rail and underground tram system in Volgograd, Russia, providing rapid transit-style service along a dedicated north–south corridor through the city.
  • 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: Saint Petersburg suburban railways
Triple: [Lastochka, usedOn, Saint Petersburg suburban railways]
Generated description
Saint Petersburg suburban railways are an extensive commuter rail network serving the greater Saint Petersburg metropolitan area, connecting the city with its surrounding suburbs and regional towns.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Saint Petersburg suburban railways
Target entity description: Saint Petersburg suburban railways are an extensive commuter rail network serving the greater Saint Petersburg metropolitan area, connecting the city with its surrounding suburbs and regional towns.
  • A. Moscow Railway suburban network
    The Moscow Railway suburban network is an extensive commuter rail system serving Moscow and the surrounding Moscow Oblast, connecting the capital with numerous satellite towns and suburbs.
  • B. Paveletsky suburban railway line
    The Paveletsky suburban railway line is a commuter rail route serving suburban areas south of Moscow, connecting the city with surrounding towns and residential districts.
  • C. Saint Petersburg Metro
    The Saint Petersburg Metro is a major rapid transit system in Saint Petersburg, Russia, renowned for its deep underground stations and ornate, palace-like architecture.
  • D. Kaluzhsko–Rizhskaya Line
    The Kaluzhsko–Rizhskaya Line is a major line of the Moscow Metro system, running north–south through the city and serving several densely populated residential and commercial districts.
  • E. Volgograd Metrotram
    The Volgograd Metrotram is a hybrid light rail and underground tram system in Volgograd, Russia, providing rapid transit-style service along a dedicated north–south corridor through the city.
  • 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_69bd43d175248190894dc58b5b395c26 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd56fca7d4819081deb34628e04f00 completed March 20, 2026, 2:17 p.m.
NED1 Entity disambiguation (via context triple) batch_69bd7f71de7081908520ebb81d184e0c completed March 20, 2026, 5:10 p.m.
NEDg Description generation batch_69bd802c09108190a21b2235710a0f74 completed March 20, 2026, 5:13 p.m.
NED2 Entity disambiguation (via description) batch_69bd84c11d8881908819b36669dee7b5 completed March 20, 2026, 5:32 p.m.
Created at: March 20, 2026, 1:01 p.m.