Triple

T8573309
Position Surface form Disambiguated ID Type / Status
Subject Karaj E202981 entity
Predicate hasPublicTransport P1288 FINISHED
Object Karaj Metro
Karaj Metro is an urban rapid transit system serving the city of Karaj in Iran, providing high-capacity rail transportation for commuters.
 E828945 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: Karaj Metro | Statement: [Karaj, hasPublicTransport, Karaj Metro]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Karaj Metro
Context triple: [Karaj, hasPublicTransport, Karaj Metro]
  • A. Tehran Metro Line 2
    Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
  • B. Mashhad Metro
    Mashhad Metro is the urban rapid transit system serving the city of Mashhad in northeastern Iran, providing high-capacity public transportation across the metropolitan area.
  • C. Tehran Metro Line 3
    Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
  • D. Tehran Metro Line 1
    Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
  • E. Tehran Metro
    Tehran Metro is the rapid transit system serving Iran’s capital, providing extensive urban and suburban rail transport across the Tehran metropolitan area.
  • 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: Karaj Metro
Triple: [Karaj, hasPublicTransport, Karaj Metro]
Generated description
Karaj Metro is an urban rapid transit system serving the city of Karaj in Iran, providing high-capacity rail transportation for commuters.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Karaj Metro
Target entity description: Karaj Metro is an urban rapid transit system serving the city of Karaj in Iran, providing high-capacity rail transportation for commuters.
  • A. Tehran Metro Line 2
    Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
  • B. Mashhad Metro
    Mashhad Metro is the urban rapid transit system serving the city of Mashhad in northeastern Iran, providing high-capacity public transportation across the metropolitan area.
  • C. Tehran Metro Line 3
    Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
  • D. Tehran Metro Line 1
    Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
  • E. Tehran Metro
    Tehran Metro is the rapid transit system serving Iran’s capital, providing extensive urban and suburban rail transport across the Tehran metropolitan area.
  • 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_69ca8328ebe481909a8c038fa79959b4 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbea458c1081908e79bee2cbf97207 completed March 31, 2026, 3:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69d20c75bf508190a812c87950cb5227 completed April 5, 2026, 7:17 a.m.
NEDg Description generation batch_69d20fe81dfc81909da77c59d0b8497a completed April 5, 2026, 7:31 a.m.
NED2 Entity disambiguation (via description) batch_69d210fed02c8190bde2dfa7e81b1ef2 completed April 5, 2026, 7:36 a.m.
Created at: March 30, 2026, 6:21 p.m.