Triple
T1788947
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lake Tana |
E39450
|
entity |
| Predicate | nearWaterfall |
P29602
|
FINISHED |
| Object |
Tis Issat (Blue Nile Falls)
Tis Issat, also known as the Blue Nile Falls, is a famous and spectacular waterfall on the Blue Nile River in Ethiopia, renowned for its powerful cascades and scenic beauty.
|
E199193
|
NE FINISHED |
How this triple was built (5 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: Tis Issat (Blue Nile Falls) | Statement: [Lake Tana, nearWaterfall, Tis Issat (Blue Nile Falls)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tis Issat (Blue Nile Falls) Context triple: [Lake Tana, nearWaterfall, Tis Issat (Blue Nile Falls)]
-
A.
Havasu Falls
Havasu Falls is a famous turquoise-blue waterfall located in the Grand Canyon on the Havasupai Indian Reservation in Arizona, renowned for its striking travertine pools and scenic desert oasis setting.
-
B.
Tanda Falls
Tanda Falls is a scenic waterfall and popular natural getaway located near Mirzapur in Uttar Pradesh, India.
-
C.
Ngonye Falls
Ngonye Falls is a broad, horseshoe-shaped waterfall on the Zambezi River in western Zambia, noted for its scenic beauty and less-developed, remote setting compared to Victoria Falls.
-
D.
Chavuma Falls
Chavuma Falls is a scenic waterfall on the Zambezi River near the Zambia–Angola border, known for its rugged rock formations and relatively remote, unspoiled setting.
-
E.
Livingstone Falls
Livingstone Falls is a series of powerful rapids and cataracts on the lower Congo River in Central Africa, known for its dramatic drop in elevation and challenging navigation.
- 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: Tis Issat (Blue Nile Falls) Triple: [Lake Tana, nearWaterfall, Tis Issat (Blue Nile Falls)]
Generated description
Tis Issat, also known as the Blue Nile Falls, is a famous and spectacular waterfall on the Blue Nile River in Ethiopia, renowned for its powerful cascades and scenic beauty.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tis Issat (Blue Nile Falls) Target entity description: Tis Issat, also known as the Blue Nile Falls, is a famous and spectacular waterfall on the Blue Nile River in Ethiopia, renowned for its powerful cascades and scenic beauty.
-
A.
Havasu Falls
Havasu Falls is a famous turquoise-blue waterfall located in the Grand Canyon on the Havasupai Indian Reservation in Arizona, renowned for its striking travertine pools and scenic desert oasis setting.
-
B.
Tanda Falls
Tanda Falls is a scenic waterfall and popular natural getaway located near Mirzapur in Uttar Pradesh, India.
-
C.
Ngonye Falls
Ngonye Falls is a broad, horseshoe-shaped waterfall on the Zambezi River in western Zambia, noted for its scenic beauty and less-developed, remote setting compared to Victoria Falls.
-
D.
Chavuma Falls
Chavuma Falls is a scenic waterfall on the Zambezi River near the Zambia–Angola border, known for its rugged rock formations and relatively remote, unspoiled setting.
-
E.
Sennar Dam
Sennar Dam is a major early-20th-century irrigation and hydroelectric dam on the Blue Nile in Sudan, crucial for agricultural development in the Gezira region.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: nearWaterfall Context triple: [Lake Tana, nearWaterfall, Tis Issat (Blue Nile Falls)]
-
A.
nearbyWaterfall
chosen
Indicates that the entity is located close to or within a short distance of a waterfall.
-
B.
nearbyWatercourse
Indicates that one entity is located close to or alongside a natural or artificial watercourse, such as a river, stream, or canal.
-
C.
majorWaterfall
Indicates that a waterfall is of significant size, height, or volume relative to other waterfalls.
-
D.
hasNearbyLake
Indicates that one entity is located close to or in the vicinity of a lake.
-
E.
lowerFallsHeight
Indicates that one entity has a lower vertical extent or height than another.
- F. None of above.
Provenance (6 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_69a88631854081909723959921e45c2b |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69ab75457e54819096b8c6ae8c65550c |
completed | March 7, 2026, 12:45 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ada9a8a69c8190885bf06a06d3869f |
completed | March 8, 2026, 4:54 p.m. |
| NEDg | Description generation | batch_69adaab488ec81909a340aab4916b90f |
completed | March 8, 2026, 4:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69adaf3cd23081909dd27c5de8e3f6d2 |
completed | March 8, 2026, 5:17 p.m. |
| PD | Predicate disambiguation | batch_69aa61d165688190924962a98e07ff69 |
completed | March 6, 2026, 5:10 a.m. |
Created at: March 4, 2026, 7:32 p.m.