Triple

T7492731
Position Surface form Disambiguated ID Type / Status
Subject Tabora–Kigoma railway E177044 entity
Predicate startPoint P389 FINISHED
Object Tabora railway station
Tabora railway station is a key rail hub in western Tanzania, serving as a junction and terminus for multiple regional lines including the route toward Kigoma on Lake Tanganyika.
 E667764 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: Tabora railway station | Statement: [Tabora–Kigoma railway, startPoint, Tabora railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tabora railway station
Context triple: [Tabora–Kigoma railway, startPoint, Tabora railway station]
  • A. Urunga railway station
    Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
  • B. Tanggula railway station
    Tanggula railway station is a high-altitude train station on the Qinghai–Tibet Railway, known as one of the world’s highest railway stations.
  • C. Madarihat railway station
    Madarihat railway station is a local rail stop in West Bengal, India, known primarily as the convenient gateway for visitors traveling to Jaldapara National Park.
  • D. Lusaka railway station
    Lusaka railway station is a major rail transport hub in Zambia’s capital city, serving passenger and freight services on the country’s main railway network.
  • E. Matunga railway station
    Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
  • 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: Tabora railway station
Triple: [Tabora–Kigoma railway, startPoint, Tabora railway station]
Generated description
Tabora railway station is a key rail hub in western Tanzania, serving as a junction and terminus for multiple regional lines including the route toward Kigoma on Lake Tanganyika.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tabora railway station
Target entity description: Tabora railway station is a key rail hub in western Tanzania, serving as a junction and terminus for multiple regional lines including the route toward Kigoma on Lake Tanganyika.
  • A. Urunga railway station
    Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
  • B. Tanggula railway station
    Tanggula railway station is a high-altitude train station on the Qinghai–Tibet Railway, known as one of the world’s highest railway stations.
  • C. Madarihat railway station
    Madarihat railway station is a local rail stop in West Bengal, India, known primarily as the convenient gateway for visitors traveling to Jaldapara National Park.
  • D. Lusaka railway station
    Lusaka railway station is a major rail transport hub in Zambia’s capital city, serving passenger and freight services on the country’s main railway network.
  • E. Matunga railway station
    Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
  • 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_69c69f2583808190bd1a4936c42a5815 completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f5784c908190b701959daf082625 completed March 27, 2026, 9:24 p.m.
NED1 Entity disambiguation (via context triple) batch_69c83c7c60b8819090f2c4b16332c557 completed March 28, 2026, 8:39 p.m.
NEDg Description generation batch_69c83e50fac08190bdcceef0c5f55244 completed March 28, 2026, 8:47 p.m.
NED2 Entity disambiguation (via description) batch_69c83ebff75c81908313e6df6f76d3f0 completed March 28, 2026, 8:49 p.m.
Created at: March 27, 2026, 3:43 p.m.