Triple
T7492727
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tabora–Kigoma railway |
E177044
|
entity |
| Predicate | regionServed |
P82
|
FINISHED |
| Object |
Lake Tanganyika region
The Lake Tanganyika region is an area in central Africa surrounding Lake Tanganyika, known for its rich biodiversity, fishing and transport activities, and its role as a key corridor for trade and travel between inland areas and the Great Lakes.
|
E667763
|
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: Lake Tanganyika region | Statement: [Tabora–Kigoma railway, regionServed, Lake Tanganyika region]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lake Tanganyika region Context triple: [Tabora–Kigoma railway, regionServed, Lake Tanganyika region]
-
A.
Lake Malawi region
The Lake Malawi region is an area in southeastern Africa surrounding Lake Malawi, known for its diverse ecosystems, fishing communities, and cultural and linguistic ties to the Nyanja-speaking peoples.
-
B.
Lake Victoria zone
The Lake Victoria zone is an administrative and geographical area in northern Tanzania encompassing regions around Lake Victoria, including Geita.
-
C.
Tanganyika Province
Tanganyika Province is an administrative region in the southeastern Democratic Republic of the Congo, located along the western shore of Lake Tanganyika and known for its diverse ethnic communities and natural resources.
-
D.
Lake Eyasi region
The Lake Eyasi region is an area in northern Tanzania known as the traditional homeland of the Hadza people, one of the last remaining hunter-gatherer communities in Africa.
-
E.
Equatorial lakes region
The Equatorial Lakes region is a central African area of large freshwater lakes, including Lake Victoria, that forms the headwaters of the White Nile.
- 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: Lake Tanganyika region Triple: [Tabora–Kigoma railway, regionServed, Lake Tanganyika region]
Generated description
The Lake Tanganyika region is an area in central Africa surrounding Lake Tanganyika, known for its rich biodiversity, fishing and transport activities, and its role as a key corridor for trade and travel between inland areas and the Great Lakes.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lake Tanganyika region Target entity description: The Lake Tanganyika region is an area in central Africa surrounding Lake Tanganyika, known for its rich biodiversity, fishing and transport activities, and its role as a key corridor for trade and travel between inland areas and the Great Lakes.
-
A.
Lake Malawi region
The Lake Malawi region is an area in southeastern Africa surrounding Lake Malawi, known for its diverse ecosystems, fishing communities, and cultural and linguistic ties to the Nyanja-speaking peoples.
-
B.
Lake Victoria zone
The Lake Victoria zone is an administrative and geographical area in northern Tanzania encompassing regions around Lake Victoria, including Geita.
-
C.
Tanganyika Province
Tanganyika Province is an administrative region in the southeastern Democratic Republic of the Congo, located along the western shore of Lake Tanganyika and known for its diverse ethnic communities and natural resources.
-
D.
Lake Eyasi region
The Lake Eyasi region is an area in northern Tanzania known as the traditional homeland of the Hadza people, one of the last remaining hunter-gatherer communities in Africa.
-
E.
Equatorial lakes region
The Equatorial Lakes region is a central African area of large freshwater lakes, including Lake Victoria, that forms the headwaters of the White Nile.
- 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.