Triple

T960849
Position Surface form Disambiguated ID Type / Status
Subject Chad E20731 entity
Predicate notableLake P1025 FINISHED
Object Lake Chad
Lake Chad is a large, shallow, and historically significant freshwater lake in north-central Africa that has dramatically shrunk in size over recent decades due to climate change and human use.
E113465 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: Lake Chad | Statement: [Chad, notableLake, Lake Chad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lake Chad
Context triple: [Chad, notableLake, Lake Chad]
  • A. Lake Chad basin
    The Lake Chad basin is a large, landlocked drainage region in north-central Africa encompassing parts of Chad, Nigeria, Niger, Cameroon, and surrounding countries, centered around Lake Chad and its river systems.
  • B. Lake Turkana
    Lake Turkana is a large, saline lake in Kenya’s arid north, renowned for its striking turquoise waters, rich biodiversity, and significant archaeological sites along its shores.
  • C. Lake Bourget
    Lake Bourget is a large glacial lake in eastern France, renowned for its scenic Alpine setting, biodiversity, and popularity as a destination for boating and outdoor recreation.
  • D. Lake Albert
    Lake Albert is one of Africa’s Great Lakes, lying on the border between Uganda and the Democratic Republic of the Congo within the western branch of the East African Rift.
  • E. Lake Victoria
    Lake Victoria is a vast freshwater lake in East Africa, bordered by Tanzania, Uganda, and Kenya, and is renowned as the world’s largest tropical lake and a vital regional resource.
  • 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: Lake Chad
Triple: [Chad, notableLake, Lake Chad]
Generated description
Lake Chad is a large, shallow, and historically significant freshwater lake in north-central Africa that has dramatically shrunk in size over recent decades due to climate change and human use.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lake Chad
Target entity description: Lake Chad is a large, shallow, and historically significant freshwater lake in north-central Africa that has dramatically shrunk in size over recent decades due to climate change and human use.
  • A. Lake Chad basin
    The Lake Chad basin is a large, landlocked drainage region in north-central Africa encompassing parts of Chad, Nigeria, Niger, Cameroon, and surrounding countries, centered around Lake Chad and its river systems.
  • B. Lake Turkana
    Lake Turkana is a large, saline lake in Kenya’s arid north, renowned for its striking turquoise waters, rich biodiversity, and significant archaeological sites along its shores.
  • C. Lake Bourget
    Lake Bourget is a large glacial lake in eastern France, renowned for its scenic Alpine setting, biodiversity, and popularity as a destination for boating and outdoor recreation.
  • D. Lake Albert
    Lake Albert is one of Africa’s Great Lakes, lying on the border between Uganda and the Democratic Republic of the Congo within the western branch of the East African Rift.
  • E. Lake Victoria
    Lake Victoria is a vast freshwater lake in East Africa, bordered by Tanzania, Uganda, and Kenya, and is renowned as the world’s largest tropical lake and a vital regional resource.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: notableLake
Context triple: [Chad, notableLake, Lake Chad]
  • A. hasMajorLake chosen
    Indicates that a geographic region or area contains at least one significant lake within its boundaries.
  • B. lakeShape
    Indicates the geometric or physical outline/form that a lake possesses.
  • C. largestLakeEntirelyIn
    Indicates that one entity is the largest lake located entirely within the boundaries of another entity (such as a country, region, or territory).
  • D. numberOfLakes
    Indicates the quantity of lakes associated with a given entity.
  • E. notableGlacier
    Indicates that the subject is a glacier recognized for its particular significance, prominence, or noteworthiness.
  • 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_69a493b21f2881908132dcf45dcd2f36 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b4144c208190980936347a95e233 completed March 1, 2026, 9:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac11a3f8c481908f9ed37c44788cb7 completed March 7, 2026, 11:53 a.m.
NEDg Description generation batch_69ac1339634c8190b83c39db30fc78b1 completed March 7, 2026, 11:59 a.m.
NED2 Entity disambiguation (via description) batch_69ac13931cf081908de84000f7b037fc completed March 7, 2026, 12:01 p.m.
PD Predicate disambiguation batch_69a4b2a2e23c8190b932fe88b02f995d completed March 1, 2026, 9:41 p.m.
Created at: March 1, 2026, 7:40 p.m.