Triple

T9551379
Position Surface form Disambiguated ID Type / Status
Subject Akula-class submarine E230427 entity
Predicate notableLease P16089 FINISHED
Object INS Chakra (leased to India)
INS Chakra (leased to India) was a Russian-built Akula-class nuclear-powered attack submarine operated by the Indian Navy under a long-term lease to enhance its underwater warfare capabilities.
E806647 NE FINISHED

How this triple was built (5 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: INS Chakra (leased to India) | Statement: [Akula-class submarine, notableLease, INS Chakra (leased to India)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: INS Chakra (leased to India)
Context triple: [Akula-class submarine, notableLease, INS Chakra (leased to India)]
  • A. HAL Tejas
    HAL Tejas is a lightweight, multirole, supersonic fighter aircraft developed by India as an indigenous fourth-generation combat jet.
  • B. DRDO Netra AEW&CS
    The DRDO Netra AEW&CS is an Indian indigenously developed airborne early warning and control system mounted on an Embraer ERJ-145 aircraft, designed to provide airspace surveillance, command and control, and battle management capabilities.
  • C. Sukhoi Su-30MKI
    The Sukhoi Su-30MKI is a twin-engine, multirole air superiority fighter aircraft of Russian origin, heavily customized with Indian and Western avionics and systems for service with the Indian Air Force.
  • D. INS Circars
    INS Circars is an Indian Navy shore establishment under the Eastern Naval Command, serving as a key support and administrative base on the east coast of India.
  • E. Prithvi-II
    Prithvi-II is a short-range, surface-to-surface ballistic missile developed by India for tactical military use, capable of carrying conventional or nuclear warheads.
  • 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: INS Chakra (leased to India)
Triple: [Akula-class submarine, notableLease, INS Chakra (leased to India)]
Generated description
INS Chakra (leased to India) was a Russian-built Akula-class nuclear-powered attack submarine operated by the Indian Navy under a long-term lease to enhance its underwater warfare capabilities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: INS Chakra (leased to India)
Target entity description: INS Chakra (leased to India) was a Russian-built Akula-class nuclear-powered attack submarine operated by the Indian Navy under a long-term lease to enhance its underwater warfare capabilities.
  • A. HAL Tejas
    HAL Tejas is a lightweight, multirole, supersonic fighter aircraft developed by India as an indigenous fourth-generation combat jet.
  • B. DRDO Netra AEW&CS
    The DRDO Netra AEW&CS is an Indian indigenously developed airborne early warning and control system mounted on an Embraer ERJ-145 aircraft, designed to provide airspace surveillance, command and control, and battle management capabilities.
  • C. Sukhoi Su-30MKI
    The Sukhoi Su-30MKI is a twin-engine, multirole air superiority fighter aircraft of Russian origin, heavily customized with Indian and Western avionics and systems for service with the Indian Air Force.
  • D. INS Circars
    INS Circars is an Indian Navy shore establishment under the Eastern Naval Command, serving as a key support and administrative base on the east coast of India.
  • E. Prithvi-II
    Prithvi-II is a short-range, surface-to-surface ballistic missile developed by India for tactical military use, capable of carrying conventional or nuclear warheads.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: notableLease
Context triple: [Akula-class submarine, notableLease, INS Chakra (leased to India)]
  • A. notableTenant
    Indicates that an entity is or has been a significant or noteworthy occupant or renter of a particular place or property.
  • B. notableAsset
    Indicates that an entity possesses or is associated with an asset that is particularly significant, prominent, or noteworthy in relation to it.
  • C. notableContract chosen
    Indicates that there exists a contract or agreement between entities that is of particular significance, prominence, or public interest.
  • D. notableForbesListing
    Indicates that an entity has been recognized or included in a notable Forbes magazine list or ranking.
  • E. notableLocation
    Indicates that a location is especially significant, prominent, or noteworthy in relation to the subject.
  • F. None of above.

Provenance (6 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_69ca847d3be8819099c9dad2a7e786f1 completed March 30, 2026, 2:11 p.m.
NER Named-entity recognition batch_69cd991df7308190a56d95f195627513 completed April 1, 2026, 10:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69d1528068a481908d5c8037b4591db5 completed April 4, 2026, 6:03 p.m.
NEDg Description generation batch_69d153c26b8481908298b32918666562 completed April 4, 2026, 6:09 p.m.
NED2 Entity disambiguation (via description) batch_69d15445e7a88190accd19c53a6170bb completed April 4, 2026, 6:11 p.m.
PD Predicate disambiguation batch_69ccd594d0ac8190a81bc11a3a538167 completed April 1, 2026, 8:21 a.m.
Created at: March 30, 2026, 8:02 p.m.