Triple
T22420699
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ulhitiya Oya |
E554237
|
entity |
| Predicate | drainageBasin |
P1559
|
FINISHED |
| Object | Mahaweli River drainage basin |
—
|
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: Mahaweli River drainage basin | Statement: [Ulhitiya Oya, drainageBasin, Mahaweli River drainage basin]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mahaweli River drainage basin Context triple: [Ulhitiya Oya, drainageBasin, Mahaweli River drainage basin]
-
A.
Kelani River basin
The Kelani River basin is a major river catchment area in western Sri Lanka that supports dense populations, agriculture, and industry while providing a key source of water and hydropower.
-
B.
Mahi River basin
The Mahi River basin is the drainage area of the Mahi River in western India, spanning parts of Madhya Pradesh, Rajasthan, and Gujarat and supporting agriculture, settlements, and ecosystems along its course.
-
C.
Mahananda River basin
The Mahananda River basin is a river drainage region in eastern India and parts of Bangladesh that supports extensive agriculture, settlements, and ecosystems along the Mahananda River and its tributaries.
-
D.
Mithi River basin
The Mithi River basin is an urban river catchment area in Mumbai, India, that drains parts of the city including major lakes and industrial zones before flowing into the Arabian Sea.
-
E.
Tua River basin
The Tua River basin is a river drainage area in northeastern Portugal known for its scenic valleys, vineyards, and role as a tributary region of the Douro River.
- 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: Mahaweli River drainage basin Target entity description: The Mahaweli River drainage basin is Sri Lanka’s largest river basin, encompassing the extensive network of tributaries and catchment areas that feed the country’s longest river, the Mahaweli.
-
A.
Kelani River basin
The Kelani River basin is a major river catchment area in western Sri Lanka that supports dense populations, agriculture, and industry while providing a key source of water and hydropower.
-
B.
Mahi River basin
The Mahi River basin is the drainage area of the Mahi River in western India, spanning parts of Madhya Pradesh, Rajasthan, and Gujarat and supporting agriculture, settlements, and ecosystems along its course.
-
C.
Mahananda River basin
The Mahananda River basin is a river drainage region in eastern India and parts of Bangladesh that supports extensive agriculture, settlements, and ecosystems along the Mahananda River and its tributaries.
-
D.
Mithi River basin
The Mithi River basin is an urban river catchment area in Mumbai, India, that drains parts of the city including major lakes and industrial zones before flowing into the Arabian Sea.
-
E.
Tua River basin
The Tua River basin is a river drainage area in northeastern Portugal known for its scenic valleys, vineyards, and role as a tributary region of the Douro River.
- F. None of above. chosen
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_69e11e4f2d0c819091aa3558ea2ee630 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f1594b08d88190bb61a30397d0ffa5 |
completed | April 29, 2026, 1:05 a.m. |
Created at: April 16, 2026, 8:46 p.m.