Triple

T9128558
Position Surface form Disambiguated ID Type / Status
Subject Cambrian biota E219024 entity
Predicate includesTaxon P1393 FINISHED
Object Pikaia
Pikaia is an early chordate from the Cambrian period, often cited as one of the earliest known ancestors of vertebrates.
 E779334 NE FINISHED

How this triple was built (4 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: Pikaia | Statement: [Cambrian biota, includesTaxon, Pikaia]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pikaia
Context triple: [Cambrian biota, includesTaxon, Pikaia]
  • A. Dickinsonia
    Dickinsonia is an extinct, soft-bodied, segmented organism from the late Ediacaran Period, notable for its quilted, oval shape and its debated position in the tree of life.
  • B. Pannotia
    Pannotia was a short-lived Neoproterozoic supercontinent that formed after the breakup of Rodinia and existed roughly 650–540 million years ago.
  • C. Kimberella
    Kimberella is an extinct, soft-bodied marine organism from the late Precambrian Ediacaran period, often considered one of the earliest known animals with possible mollusc-like features.
  • D. Lophotibis
    Lophotibis is a genus of ibises, best known for the Madagascar crested ibis, and is endemic to Madagascar.
  • E. Neopilina
    Neopilina is a genus of deep-sea mollusks considered living fossils, providing key insights into the evolution and ancestral features of molluscan groups.
  • 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: Pikaia
Triple: [Cambrian biota, includesTaxon, Pikaia]
Generated description
Pikaia is an early chordate from the Cambrian period, often cited as one of the earliest known ancestors of vertebrates.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pikaia
Target entity description: Pikaia is an early chordate from the Cambrian period, often cited as one of the earliest known ancestors of vertebrates.
  • A. Dickinsonia
    Dickinsonia is an extinct, soft-bodied, segmented organism from the late Ediacaran Period, notable for its quilted, oval shape and its debated position in the tree of life.
  • B. Pannotia
    Pannotia was a short-lived Neoproterozoic supercontinent that formed after the breakup of Rodinia and existed roughly 650–540 million years ago.
  • C. Kimberella
    Kimberella is an extinct, soft-bodied marine organism from the late Precambrian Ediacaran period, often considered one of the earliest known animals with possible mollusc-like features.
  • D. Lophotibis
    Lophotibis is a genus of ibises, best known for the Madagascar crested ibis, and is endemic to Madagascar.
  • E. Neopilina
    Neopilina is a genus of deep-sea mollusks considered living fossils, providing key insights into the evolution and ancestral features of molluscan groups.
  • F. None of above. chosen

Provenance (5 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_69ca83debfc0819095800583e97ab10f completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cca8cc85b081908ee80db0e3b7df15 completed April 1, 2026, 5:10 a.m.
NED1 Entity disambiguation (via context triple) batch_69d030a934988190976aa359f9f902c3 completed April 3, 2026, 9:27 p.m.
NEDg Description generation batch_69d032a7d9808190a4b3be86e49afb22 completed April 3, 2026, 9:35 p.m.
NED2 Entity disambiguation (via description) batch_69d0337057048190af062152688599a1 completed April 3, 2026, 9:38 p.m.
Created at: March 30, 2026, 7:18 p.m.