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.