Triple

T20067295
Position Surface form Disambiguated ID Type / Status
Subject Islamic Republic of Iran Railways E499639 entity
Predicate hasRoute P4374 FINISHED
Object Tehran–Bandar Abbas railway line
The Tehran–Bandar Abbas railway line is a major north–south rail corridor in Iran that connects the capital city Tehran with the strategic Persian Gulf port of Bandar Abbas, facilitating both passenger travel and freight transport.
E1415942 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: Tehran–Bandar Abbas railway line | Statement: [Islamic Republic of Iran Railways, hasRoute, Tehran–Bandar Abbas railway line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tehran–Bandar Abbas railway line
Context triple: [Islamic Republic of Iran Railways, hasRoute, Tehran–Bandar Abbas railway line]
  • A. Tehran–Mashhad railway
    The Tehran–Mashhad railway is a major Iranian rail line connecting the capital Tehran with the holy city of Mashhad, serving as one of the country’s busiest passenger and freight corridors.
  • B. Tehran–Khorramshahr railway
    The Tehran–Khorramshahr railway is a major Iranian rail line connecting the capital Tehran with the southwestern city and port of Khorramshahr, serving as an important corridor for passenger and freight transport.
  • C. 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.
  • D. Dorud–Andimeshk railway
    The Dorud–Andimeshk railway is a major Iranian rail line traversing the Zagros Mountains, known for its numerous tunnels, bridges, and scenic yet strategically important route connecting central and southwestern Iran.
  • E. Tehran–Karaj suburban rail line
    The Tehran–Karaj suburban rail line is a key commuter railway service connecting Iran’s capital Tehran with the nearby city of Karaj, helping to handle heavy daily passenger traffic across the metropolitan 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: Tehran–Bandar Abbas railway line
Triple: [Islamic Republic of Iran Railways, hasRoute, Tehran–Bandar Abbas railway line]
Generated description
The Tehran–Bandar Abbas railway line is a major north–south rail corridor in Iran that connects the capital city Tehran with the strategic Persian Gulf port of Bandar Abbas, facilitating both passenger travel and freight transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tehran–Bandar Abbas railway line
Target entity description: The Tehran–Bandar Abbas railway line is a major north–south rail corridor in Iran that connects the capital city Tehran with the strategic Persian Gulf port of Bandar Abbas, facilitating both passenger travel and freight transport.
  • A. Tehran–Mashhad railway
    The Tehran–Mashhad railway is a major Iranian rail line connecting the capital Tehran with the holy city of Mashhad, serving as one of the country’s busiest passenger and freight corridors.
  • B. Tehran–Khorramshahr railway
    The Tehran–Khorramshahr railway is a major Iranian rail line connecting the capital Tehran with the southwestern city and port of Khorramshahr, serving as an important corridor for passenger and freight transport.
  • C. 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.
  • D. Dorud–Andimeshk railway
    The Dorud–Andimeshk railway is a major Iranian rail line traversing the Zagros Mountains, known for its numerous tunnels, bridges, and scenic yet strategically important route connecting central and southwestern Iran.
  • E. Tehran–Karaj suburban rail line
    The Tehran–Karaj suburban rail line is a key commuter railway service connecting Iran’s capital Tehran with the nearby city of Karaj, helping to handle heavy daily passenger traffic across the metropolitan corridor.
  • 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_69da627770948190997f486f9a2e370f completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66379f2cc81908f13a7b216878f12 completed April 20, 2026, 5:33 p.m.
NED1 Entity disambiguation (via context triple) batch_6a083c655c7c8190b570b793935949dd completed May 16, 2026, 9:44 a.m.
NEDg Description generation batch_6a083d5360cc8190b5c3e2df33b6ef2b completed May 16, 2026, 9:48 a.m.
NED2 Entity disambiguation (via description) batch_6a083dce8b8881908c26f6fe5ba8a8cc completed May 16, 2026, 9:50 a.m.
Created at: April 11, 2026, 3:39 p.m.