Triple

T19145485
Position Surface form Disambiguated ID Type / Status
Subject Transcameroon Railway E468667 entity
Predicate connectsTo P845 FINISHED
Object Douala–Yaoundé railway NE NERFINISHED

How this triple was built (3 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: Douala–Yaoundé railway | Statement: [Transcameroon Railway, connectsTo, Douala–Yaoundé railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Douala–Yaoundé railway
Context triple: [Transcameroon Railway, connectsTo, Douala–Yaoundé railway]
  • A. Transcameroon Railway
    The Transcameroon Railway is a major rail line in Cameroon that links the country's central and northern regions, supporting both passenger travel and freight transport across key economic areas.
  • B. Trans-Gabon Railway
    The Trans-Gabon Railway is a major rail line in Gabon that connects the inland mining regions to the Atlantic coast, serving as a key route for transporting minerals and goods across the country.
  • C. Abidjan–Ouagadougou railway
    The Abidjan–Ouagadougou railway is a major West African rail line linking the port city of Abidjan in Côte d'Ivoire with Ouagadougou, the capital of Burkina Faso, facilitating regional trade and passenger transport.
  • 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. Tabora–Mpanda railway
    The Tabora–Mpanda railway is a regional rail line in western Tanzania that connects the town of Tabora with Mpanda, supporting transport and economic activity across the area.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Douala–Yaoundé railway
Target entity description: The Douala–Yaoundé railway is a major rail line in Cameroon linking the economic capital Douala with the political capital Yaoundé, serving as a key corridor for passenger and freight transport.
  • A. Transcameroon Railway chosen
    The Transcameroon Railway is a major rail line in Cameroon that links the country's central and northern regions, supporting both passenger travel and freight transport across key economic areas.
  • B. Trans-Gabon Railway
    The Trans-Gabon Railway is a major rail line in Gabon that connects the inland mining regions to the Atlantic coast, serving as a key route for transporting minerals and goods across the country.
  • C. Abidjan–Ouagadougou railway
    The Abidjan–Ouagadougou railway is a major West African rail line linking the port city of Abidjan in Côte d'Ivoire with Ouagadougou, the capital of Burkina Faso, facilitating regional trade and passenger transport.
  • 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. Tabora–Mpanda railway
    The Tabora–Mpanda railway is a regional rail line in western Tanzania that connects the town of Tabora with Mpanda, supporting transport and economic activity across the area.
  • F. None of above.

Provenance (2 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_69d8dd084ff48190ac0f8c46ee722629 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5e978b0b481909a531efa030c5def completed April 20, 2026, 8:53 a.m.
Created at: April 10, 2026, 12:06 p.m.