Triple

T6028601
Position Surface form Disambiguated ID Type / Status
Subject Pleistocene Lake Lahontan basin E134242 entity
Predicate containsFormerLake P22801 FINISHED
Object Lake Lahontan
Lake Lahontan was a vast prehistoric pluvial lake that covered much of what is now northwestern Nevada during the Pleistocene epoch.
E565741 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 Lahontan | Statement: [Pleistocene Lake Lahontan basin, containsFormerLake, Lake Lahontan]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lake Lahontan
Context triple: [Pleistocene Lake Lahontan basin, containsFormerLake, Lake Lahontan]
  • A. Lake Bonneville
    Lake Bonneville was a massive prehistoric pluvial lake that once covered much of present-day Utah and surrounding areas during the last Ice Age, leaving behind features such as the Great Salt Lake and prominent shoreline terraces.
  • B. Pyramid Lake
    Pyramid Lake is a scenic alpine lake in the Canadian Rockies, renowned for its clear waters, surrounding mountain views, and outdoor recreation opportunities.
  • C. Pyramid Lake
    Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
  • D. Pyramid Lake
    Pyramid Lake is a man-made reservoir in Southern California’s Angeles National Forest, popular for boating, fishing, and camping.
  • E. Mono Lake
    Mono Lake is a large, ancient saline soda lake in eastern California renowned for its striking tufa towers, high salinity, and unique ecosystem supporting migratory birds and brine shrimp.
  • 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 Lahontan
Triple: [Pleistocene Lake Lahontan basin, containsFormerLake, Lake Lahontan]
Generated description
Lake Lahontan was a vast prehistoric pluvial lake that covered much of what is now northwestern Nevada during the Pleistocene epoch.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lake Lahontan
Target entity description: Lake Lahontan was a vast prehistoric pluvial lake that covered much of what is now northwestern Nevada during the Pleistocene epoch.
  • A. Lake Bonneville
    Lake Bonneville was a massive prehistoric pluvial lake that once covered much of present-day Utah and surrounding areas during the last Ice Age, leaving behind features such as the Great Salt Lake and prominent shoreline terraces.
  • B. Pyramid Lake
    Pyramid Lake is a scenic alpine lake in the Canadian Rockies, renowned for its clear waters, surrounding mountain views, and outdoor recreation opportunities.
  • C. Pyramid Lake
    Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
  • D. Pyramid Lake
    Pyramid Lake is a man-made reservoir in Southern California’s Angeles National Forest, popular for boating, fishing, and camping.
  • E. Mono Lake
    Mono Lake is a large, ancient saline soda lake in eastern California renowned for its striking tufa towers, high salinity, and unique ecosystem supporting migratory birds and brine shrimp.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: containsFormerLake
Context triple: [Pleistocene Lake Lahontan basin, containsFormerLake, Lake Lahontan]
  • A. locatedInFormerLake chosen
    Indicates that an entity is situated within the area that was once occupied by a lake that no longer exists.
  • B. hasLakeThatRepresents
    Indicates a relationship where a lake serves as a symbolic or representative feature for something, such as a place, concept, or entity.
  • C. hasProglacialLake
    Indicates that a glacier or ice sheet is or was associated with a lake formed directly in front of it by meltwater or ice-dammed water.
  • D. hasLowerLake
    Indicates that one lake is situated at a lower elevation or downstream position relative to another lake.
  • E. hasMajorLake
    Indicates that a geographic region or area contains at least one significant lake within its boundaries.
  • 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_69c0087515148190a97475d412563865 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c0560fdc84819093abba13054ea1ee completed March 22, 2026, 8:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69c11cefa21081909defda4da9278116 completed March 23, 2026, 10:58 a.m.
NEDg Description generation batch_69c11d91ddec819088e0c3988a4ba5b4 completed March 23, 2026, 11:01 a.m.
NED2 Entity disambiguation (via description) batch_69c11e2da4408190a0b32a2712cb77df completed March 23, 2026, 11:04 a.m.
PD Predicate disambiguation batch_69c049e9a68c81909da0cfe4779ce9b5 completed March 22, 2026, 7:58 p.m.
Created at: March 22, 2026, 4:07 p.m.