Triple
T19790622
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ilala District |
E475398
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object |
Dar es Salaam Central Railway Station
Dar es Salaam Central Railway Station is the main railway hub of Tanzania’s largest city, serving as a key terminus for both intercity and regional train services.
|
E1395215
|
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: Dar es Salaam Central Railway Station | Statement: [Ilala District, contains, Dar es Salaam Central Railway Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dar es Salaam Central Railway Station Context triple: [Ilala District, contains, Dar es Salaam Central Railway Station]
-
A.
Soroti Railway Station
Soroti Railway Station is a railway facility serving the town of Soroti in eastern Uganda, connecting it to the national rail network.
-
B.
Nairobi station
Nairobi station is one of the themed passenger stops on Busch Gardens Tampa Bay’s Serengeti Express railway, serving as a gateway to the park’s African-inspired areas.
-
C.
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.
-
D.
Uvinza railway station
Uvinza railway station is a train station in western Tanzania that serves the town of Uvinza and connects it to the national rail network.
-
E.
Oshamambe Station
Oshamambe Station is a key railway hub in southern Hokkaido, Japan, serving as an interchange point for multiple lines and connecting regional and long-distance train services.
- 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: Dar es Salaam Central Railway Station Triple: [Ilala District, contains, Dar es Salaam Central Railway Station]
Generated description
Dar es Salaam Central Railway Station is the main railway hub of Tanzania’s largest city, serving as a key terminus for both intercity and regional train services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Dar es Salaam Central Railway Station Target entity description: Dar es Salaam Central Railway Station is the main railway hub of Tanzania’s largest city, serving as a key terminus for both intercity and regional train services.
-
A.
Soroti Railway Station
Soroti Railway Station is a railway facility serving the town of Soroti in eastern Uganda, connecting it to the national rail network.
-
B.
Nairobi station
Nairobi station is one of the themed passenger stops on Busch Gardens Tampa Bay’s Serengeti Express railway, serving as a gateway to the park’s African-inspired areas.
-
C.
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.
-
D.
Uvinza railway station
Uvinza railway station is a train station in western Tanzania that serves the town of Uvinza and connects it to the national rail network.
-
E.
Oshamambe Station
Oshamambe Station is a key railway hub in southern Hokkaido, Japan, serving as an interchange point for multiple lines and connecting regional and long-distance train services.
- 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_69d8e51b014081908b263e167370529a |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e653c217bc819092c517b27ca22087 |
completed | April 20, 2026, 4:26 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a07c4fff3548190a069b665c0885627 |
completed | May 16, 2026, 1:14 a.m. |
| NEDg | Description generation | batch_6a07c580b3108190bcc64fe1f479d7c4 |
completed | May 16, 2026, 1:16 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a07c5e7a5d08190b6a24f66ff966cec |
completed | May 16, 2026, 1:18 a.m. |
Created at: April 10, 2026, 1:49 p.m.