Triple

T6347266
Position Surface form Disambiguated ID Type / Status
Subject Port of Chabahar E142775 entity
Predicate connectedTo P37 FINISHED
Object Chabahar–Zahedan railway (planned)
The Chabahar–Zahedan railway is a planned strategic rail line in southeastern Iran intended to link the port city of Chabahar with the inland city of Zahedan, enhancing regional trade and transit connectivity.
E587116 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: Chabahar–Zahedan railway (planned) | Statement: [Port of Chabahar, connectedTo, Chabahar–Zahedan railway (planned)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chabahar–Zahedan railway (planned)
Context triple: [Port of Chabahar, connectedTo, Chabahar–Zahedan railway (planned)]
  • A. Tehran–Tabriz railway
    The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
  • B. 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.
  • C. 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.
  • D. Trans-Caspian Railway
    The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
  • E. Karachi–Peshawar Railway Line
    The Karachi–Peshawar Railway Line is Pakistan’s principal north–south rail corridor, linking the port city of Karachi with Peshawar and connecting major urban and industrial centers along its route.
  • 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: Chabahar–Zahedan railway (planned)
Triple: [Port of Chabahar, connectedTo, Chabahar–Zahedan railway (planned)]
Generated description
The Chabahar–Zahedan railway is a planned strategic rail line in southeastern Iran intended to link the port city of Chabahar with the inland city of Zahedan, enhancing regional trade and transit connectivity.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chabahar–Zahedan railway (planned)
Target entity description: The Chabahar–Zahedan railway is a planned strategic rail line in southeastern Iran intended to link the port city of Chabahar with the inland city of Zahedan, enhancing regional trade and transit connectivity.
  • A. Tehran–Tabriz railway
    The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
  • B. 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.
  • C. 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.
  • D. Trans-Caspian Railway
    The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
  • E. Karachi–Peshawar Railway Line
    The Karachi–Peshawar Railway Line is Pakistan’s principal north–south rail corridor, linking the port city of Karachi with Peshawar and connecting major urban and industrial centers along its route.
  • 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_69c008d5ab108190b346c465696824a9 completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c067ba2c64819094fa38bb2aeffa6c completed March 22, 2026, 10:05 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6044b33fc8190a214c6615d072715 completed March 27, 2026, 4:15 a.m.
NEDg Description generation batch_69c6057466ec8190afe96107862bb40a completed March 27, 2026, 4:20 a.m.
NED2 Entity disambiguation (via description) batch_69c6060a113881909b424d0c47c2107e completed March 27, 2026, 4:22 a.m.
Created at: March 22, 2026, 4:31 p.m.