Triple
T7492733
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tabora–Kigoma railway |
E177044
|
entity |
| Predicate | connectsTo |
P845
|
FINISHED |
| Object |
Central Line at Tabora
The Central Line at Tabora is a key junction on Tanzania’s main east–west railway corridor, linking the central rail network with the Tabora–Kigoma line and facilitating passenger and freight movement across the country.
|
E667765
|
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: Central Line at Tabora | Statement: [Tabora–Kigoma railway, connectsTo, Central Line at Tabora]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Central Line at Tabora Context triple: [Tabora–Kigoma railway, connectsTo, Central Line at Tabora]
-
A.
Tarka Line
The Tarka Line is a scenic rural railway route in Devon, England, running between Exeter and Barnstaple through the countryside associated with Henry Williamson’s novel "Tarka the Otter."
-
B.
Batong Line
The Batong Line is a rapid transit line in Beijing that extends the Beijing Subway network eastward into the suburban Tongzhou District.
-
C.
Tabaran
Tabaran is a 1987 world-fusion album by Australian band Not Drowning, Waving, created in collaboration with musicians from Papua New Guinea.
-
D.
Hyoksin Line
The Hyoksin Line is one of the main lines of the Pyongyang Metro system in North Korea, serving several central and residential districts of the capital.
-
E.
Nijubashi
Nijubashi is a famous pair of bridges at the main entrance to Tokyo’s Imperial Palace, known as an iconic historic and photographic landmark in Japan.
- 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: Central Line at Tabora Triple: [Tabora–Kigoma railway, connectsTo, Central Line at Tabora]
Generated description
The Central Line at Tabora is a key junction on Tanzania’s main east–west railway corridor, linking the central rail network with the Tabora–Kigoma line and facilitating passenger and freight movement across the country.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Central Line at Tabora Target entity description: The Central Line at Tabora is a key junction on Tanzania’s main east–west railway corridor, linking the central rail network with the Tabora–Kigoma line and facilitating passenger and freight movement across the country.
-
A.
Tarka Line
The Tarka Line is a scenic rural railway route in Devon, England, running between Exeter and Barnstaple through the countryside associated with Henry Williamson’s novel "Tarka the Otter."
-
B.
Batong Line
The Batong Line is a rapid transit line in Beijing that extends the Beijing Subway network eastward into the suburban Tongzhou District.
-
C.
Tabaran
Tabaran is a 1987 world-fusion album by Australian band Not Drowning, Waving, created in collaboration with musicians from Papua New Guinea.
-
D.
Hyoksin Line
The Hyoksin Line is one of the main lines of the Pyongyang Metro system in North Korea, serving several central and residential districts of the capital.
-
E.
Nijubashi
Nijubashi is a famous pair of bridges at the main entrance to Tokyo’s Imperial Palace, known as an iconic historic and photographic landmark in Japan.
- 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.