Triple

T15521985
Position Surface form Disambiguated ID Type / Status
Subject nitrogen-13 E368990 entity
Predicate application P98 FINISHED
Object positron emission tomography
Positron emission tomography is a nuclear imaging technique that produces detailed three-dimensional images of functional processes in the body by detecting pairs of gamma rays emitted indirectly by a positron-emitting radiotracer.
 E1161758 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: positron emission tomography | Statement: [nitrogen-13, application, positron emission tomography]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: positron emission tomography
Context triple: [nitrogen-13, application, positron emission tomography]
  • A. thallium-201
    Thallium-201 is a radioactive isotope of thallium widely used in nuclear medicine, particularly for myocardial perfusion imaging to assess coronary artery disease.
  • B. MRI
    MRI (Matz's Ruby Interpreter) is the standard reference implementation of the Ruby programming language, written in C and known for prioritizing simplicity and developer happiness.
  • C. Department of Nuclear Medicine
    The Department of Nuclear Medicine is a clinical and research unit specializing in diagnostic imaging and radionuclide-based therapies using radioactive tracers and advanced imaging technologies.
  • D. nitrogen-13
    Nitrogen-13 is a short-lived radioactive isotope of nitrogen that plays a key role as an intermediate nuclide in stellar nuclear fusion processes.
  • E. CT
    CT is a 3GPP core network and terminals working group responsible for specifying protocols and interfaces for mobile telecommunications systems.
  • 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: positron emission tomography
Triple: [nitrogen-13, application, positron emission tomography]
Generated description
Positron emission tomography is a nuclear imaging technique that produces detailed three-dimensional images of functional processes in the body by detecting pairs of gamma rays emitted indirectly by a positron-emitting radiotracer.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: positron emission tomography
Target entity description: Positron emission tomography is a nuclear imaging technique that produces detailed three-dimensional images of functional processes in the body by detecting pairs of gamma rays emitted indirectly by a positron-emitting radiotracer.
  • A. thallium-201
    Thallium-201 is a radioactive isotope of thallium widely used in nuclear medicine, particularly for myocardial perfusion imaging to assess coronary artery disease.
  • B. MRI
    MRI (Matz's Ruby Interpreter) is the standard reference implementation of the Ruby programming language, written in C and known for prioritizing simplicity and developer happiness.
  • C. Department of Nuclear Medicine
    The Department of Nuclear Medicine is a clinical and research unit specializing in diagnostic imaging and radionuclide-based therapies using radioactive tracers and advanced imaging technologies.
  • D. nitrogen-13
    Nitrogen-13 is a short-lived radioactive isotope of nitrogen that plays a key role as an intermediate nuclide in stellar nuclear fusion processes.
  • E. CT
    CT is a 3GPP core network and terminals working group responsible for specifying protocols and interfaces for mobile telecommunications systems.
  • 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_69d85a1794cc8190b0b428716296e63e completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e0403543188190abac49d2b9decb89 completed April 16, 2026, 1:49 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff3d54ea5c8190b3b220ad10ba8f40 completed May 9, 2026, 1:57 p.m.
NEDg Description generation batch_69ff3e5643088190a9b001ef815ddd3a completed May 9, 2026, 2:01 p.m.
NED2 Entity disambiguation (via description) batch_69ff3f4456f88190b7fc9b853b0155e4 completed May 9, 2026, 2:05 p.m.
Created at: April 10, 2026, 4:04 a.m.