Triple

T986790
Position Surface form Disambiguated ID Type / Status
Subject Persian Corridor E21296 entity
Predicate keyRailLine P848 FINISHED
Object Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
E116620 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: Trans-Iranian Railway | Statement: [Persian Corridor, keyRailLine, Trans-Iranian Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Trans-Iranian Railway
Context triple: [Persian Corridor, keyRailLine, Trans-Iranian Railway]
  • A. Persian Corridor
    The Persian Corridor was a vital World War II supply route through Iran used by the Allies to transport military aid to the Soviet Union.
  • B. Trans-Siberian Railway
    The Trans-Siberian Railway is a legendary long-distance rail line spanning Russia from Europe to the Pacific, renowned as one of the longest railway routes in the world.
  • C. Baikal–Amur Mainline
    The Baikal–Amur Mainline is a major Soviet-era railway line in Russia that runs parallel to the Trans-Siberian Railway, traversing remote regions of Siberia and the Russian Far East.
  • D. Quetta–Chaman railway line
    The Quetta–Chaman railway line is a historic rail route in Balochistan, Pakistan, running from the provincial capital Quetta to the border town of Chaman near Afghanistan and serving as a key strategic and regional transport link.
  • E. Karakoram Highway
    The Karakoram Highway is a high-altitude international road linking Pakistan and China through the Karakoram mountain range, renowned as one of the world’s highest paved routes and a key part of the ancient Silk Road corridor.
  • 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: Trans-Iranian Railway
Triple: [Persian Corridor, keyRailLine, Trans-Iranian Railway]
Generated description
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Trans-Iranian Railway
Target entity description: The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
  • A. Persian Corridor
    The Persian Corridor was a vital World War II supply route through Iran used by the Allies to transport military aid to the Soviet Union.
  • B. Trans-Siberian Railway
    The Trans-Siberian Railway is a legendary long-distance rail line spanning Russia from Europe to the Pacific, renowned as one of the longest railway routes in the world.
  • C. Baikal–Amur Mainline
    The Baikal–Amur Mainline is a major Soviet-era railway line in Russia that runs parallel to the Trans-Siberian Railway, traversing remote regions of Siberia and the Russian Far East.
  • D. Quetta–Chaman railway line
    The Quetta–Chaman railway line is a historic rail route in Balochistan, Pakistan, running from the provincial capital Quetta to the border town of Chaman near Afghanistan and serving as a key strategic and regional transport link.
  • E. Karakoram Highway
    The Karakoram Highway is a high-altitude international road linking Pakistan and China through the Karakoram mountain range, renowned as one of the world’s highest paved routes and a key part of the ancient Silk Road corridor.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: keyRailLine
Context triple: [Persian Corridor, keyRailLine, Trans-Iranian Railway]
  • A. railwayLine chosen
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • B. railwayLineRole
    Indicates the specific functional role or purpose that a railway line serves within a rail network or transportation system.
  • C. railwayLineType
    Indicates the specific kind or classification of a railway line associated with an entity (e.g., main line, branch line, high-speed line).
  • D. numberOfRailLines
    Indicates the total count of rail lines associated with or serving a given entity.
  • E. formerRailwayLine
    Indicates that a railway line previously existed in the past but is no longer in operation or has been decommissioned.
  • 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_69a493c383dc8190a03257f22d4b4183 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b4a7754c8190a10ba0587bd8323d completed March 1, 2026, 9:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac1ce5c0d48190ab023cec30b2c25a completed March 7, 2026, 12:41 p.m.
NEDg Description generation batch_69ac20a7f47c8190b765cde3c6fbe1f8 completed March 7, 2026, 12:57 p.m.
NED2 Entity disambiguation (via description) batch_69ac21640a8c8190820a1b34a7d5c895 completed March 7, 2026, 1 p.m.
PD Predicate disambiguation batch_69a4b2abccbc8190a83af432f89eacf5 completed March 1, 2026, 9:42 p.m.
Created at: March 1, 2026, 7:41 p.m.