Triple

T13160924
Position Surface form Disambiguated ID Type / Status
Subject Addis Ababa–Djibouti Railway E312722 entity
Predicate operator P179 FINISHED
Object Société Djiboutienne de Chemin de Fer
Société Djiboutienne de Chemin de Fer is the national railway company of Djibouti responsible for managing and operating the country’s rail services, including its international link with Ethiopia.
E1024451 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: Société Djiboutienne de Chemin de Fer | Statement: [Addis Ababa–Djibouti Railway, operator, Société Djiboutienne de Chemin de Fer]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Société Djiboutienne de Chemin de Fer
Context triple: [Addis Ababa–Djibouti Railway, operator, Société Djiboutienne de Chemin de Fer]
  • A. Djibouti Telecom
    Djibouti Telecom is the national telecommunications operator of Djibouti, providing fixed, mobile, and internet services across the country.
  • B. Addis Ababa–Djibouti Railway
    The Addis Ababa–Djibouti Railway is a modern electrified standard-gauge rail line linking Ethiopia’s capital Addis Ababa with the port city of Djibouti, serving as a key trade and transport corridor for landlocked Ethiopia.
  • C. Société Nationale des Chemins de fer du Congo
    Société Nationale des Chemins de fer du Congo is the state-owned railway company of the Democratic Republic of the Congo, responsible for operating much of the country’s rail transport infrastructure and services.
  • D. Bamako–Dakar Railway
    The Bamako–Dakar Railway is a major West African rail line connecting Mali’s capital Bamako with Dakar in Senegal, facilitating regional trade and passenger transport.
  • E. Banque Centrale de Djibouti
    Banque Centrale de Djibouti is the central bank of Djibouti, responsible for the country’s monetary policy, financial regulation, and currency management.
  • 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: Société Djiboutienne de Chemin de Fer
Triple: [Addis Ababa–Djibouti Railway, operator, Société Djiboutienne de Chemin de Fer]
Generated description
Société Djiboutienne de Chemin de Fer is the national railway company of Djibouti responsible for managing and operating the country’s rail services, including its international link with Ethiopia.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Société Djiboutienne de Chemin de Fer
Target entity description: Société Djiboutienne de Chemin de Fer is the national railway company of Djibouti responsible for managing and operating the country’s rail services, including its international link with Ethiopia.
  • A. Djibouti Telecom
    Djibouti Telecom is the national telecommunications operator of Djibouti, providing fixed, mobile, and internet services across the country.
  • B. Addis Ababa–Djibouti Railway
    The Addis Ababa–Djibouti Railway is a modern electrified standard-gauge rail line linking Ethiopia’s capital Addis Ababa with the port city of Djibouti, serving as a key trade and transport corridor for landlocked Ethiopia.
  • C. Société Nationale des Chemins de fer du Congo
    Société Nationale des Chemins de fer du Congo is the state-owned railway company of the Democratic Republic of the Congo, responsible for operating much of the country’s rail transport infrastructure and services.
  • D. Bamako–Dakar Railway
    The Bamako–Dakar Railway is a major West African rail line connecting Mali’s capital Bamako with Dakar in Senegal, facilitating regional trade and passenger transport.
  • E. Banque Centrale de Djibouti
    Banque Centrale de Djibouti is the central bank of Djibouti, responsible for the country’s monetary policy, financial regulation, and currency management.
  • 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_69d806ac3ee081909b2fd27d060aa974 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98c0971008190869e9de710f4c579 completed April 10, 2026, 11:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6eaf2ae688190b3484989791977ce completed May 3, 2026, 6:28 a.m.
NEDg Description generation batch_69f6ebec15188190a8a07af6eb447edf completed May 3, 2026, 6:32 a.m.
NED2 Entity disambiguation (via description) batch_69f6ec7fe56481909e1ed69df593fa34 completed May 3, 2026, 6:34 a.m.
Created at: April 9, 2026, 9:12 p.m.