Triple

T11321497
Position Surface form Disambiguated ID Type / Status
Subject Mumbai Central E268103 entity
Predicate formerStationCode P75590 FINISHED
Object BCT
BCT is the railway station code for Mumbai Central, a major terminus on the Western Railway network in Mumbai, India.
 E919072 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: BCT | Statement: [Mumbai Central, formerStationCode, BCT]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BCT
Context triple: [Mumbai Central, formerStationCode, BCT]
  • A. BCT
    BCT is the Central Bank of Tunisia, the country’s primary monetary authority responsible for issuing currency and overseeing financial stability.
  • B. BCT
    BCT is the initial military training program that transforms civilian recruits into basic soldiers by teaching fundamental combat, discipline, and physical fitness skills.
  • C. BCL
    BCL is a public library system serving the community of Beaverton, Oregon with lending materials, programs, and educational resources.
  • D. CBW
    CBW is the National Rail station code for Canterbury West railway station in Canterbury, Kent, England.
  • E. Bt
    Bt is the post-nominal abbreviation for a baronetcy title in the British honours system, indicating that the holder is a baronet.
  • 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: BCT
Triple: [Mumbai Central, formerStationCode, BCT]
Generated description
BCT is the railway station code for Mumbai Central, a major terminus on the Western Railway network in Mumbai, India.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: BCT
Target entity description: BCT is the railway station code for Mumbai Central, a major terminus on the Western Railway network in Mumbai, India.
  • A. BCT
    BCT is the Central Bank of Tunisia, the country’s primary monetary authority responsible for issuing currency and overseeing financial stability.
  • B. BCT
    BCT is the initial military training program that transforms civilian recruits into basic soldiers by teaching fundamental combat, discipline, and physical fitness skills.
  • C. BCL
    BCL is a public library system serving the community of Beaverton, Oregon with lending materials, programs, and educational resources.
  • D. CBW
    CBW is the National Rail station code for Canterbury West railway station in Canterbury, Kent, England.
  • E. Bt
    Bt is the post-nominal abbreviation for a baronetcy title in the British honours system, indicating that the holder is a baronet.
  • 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_69d6aaca5c24819083db46a30d86cb34 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e9dff37081909622623e66e17ccd completed April 9, 2026, 6:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69e525ed950081908ec94cfbf8849e85 completed April 19, 2026, 6:58 p.m.
NEDg Description generation batch_69e52c82b6108190aec9b6e9d726f803 completed April 19, 2026, 7:26 p.m.
NED2 Entity disambiguation (via description) batch_69e531b079708190ac9e19127d36a848 completed April 19, 2026, 7:49 p.m.
Created at: April 8, 2026, 9:32 p.m.