Triple

T18288587
Position Surface form Disambiguated ID Type / Status
Subject Schrock carbene E438047 entity
Predicate contrastsWith P278 FINISHED
Object Fischer carbene
Fischer carbene is a type of metal–carbene complex in which a low-oxidation-state, often late-transition metal is bonded to a carbene carbon that is typically electrophilic and stabilized by π-acceptor ligands such as carbonyls.
E1316662 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: Fischer carbene | Statement: [Schrock carbene, contrastsWith, Fischer carbene]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fischer carbene
Context triple: [Schrock carbene, contrastsWith, Fischer carbene]
  • A. Schrock carbene
    A Schrock carbene is a type of organometallic complex featuring an early transition metal bonded to a strongly nucleophilic alkylidene ligand, central to many olefin metathesis catalysts.
  • B. Wilkinson's catalyst
    Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
  • C. Corey–Chaykovsky reagent
    The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
  • D. Trost ligand
    The Trost ligand is a chiral diphosphine ligand widely used in palladium-catalyzed asymmetric reactions, particularly for achieving high enantioselectivity in allylic alkylation.
  • E. Grubbs catalyst
    Grubbs catalyst is a family of ruthenium-based organometallic complexes widely used to catalyze olefin metathesis reactions in organic and polymer chemistry.
  • 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: Fischer carbene
Triple: [Schrock carbene, contrastsWith, Fischer carbene]
Generated description
Fischer carbene is a type of metal–carbene complex in which a low-oxidation-state, often late-transition metal is bonded to a carbene carbon that is typically electrophilic and stabilized by π-acceptor ligands such as carbonyls.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Fischer carbene
Target entity description: Fischer carbene is a type of metal–carbene complex in which a low-oxidation-state, often late-transition metal is bonded to a carbene carbon that is typically electrophilic and stabilized by π-acceptor ligands such as carbonyls.
  • A. Schrock carbene
    A Schrock carbene is a type of organometallic complex featuring an early transition metal bonded to a strongly nucleophilic alkylidene ligand, central to many olefin metathesis catalysts.
  • B. Wilkinson's catalyst
    Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
  • C. Corey–Chaykovsky reagent
    The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
  • D. Trost ligand
    The Trost ligand is a chiral diphosphine ligand widely used in palladium-catalyzed asymmetric reactions, particularly for achieving high enantioselectivity in allylic alkylation.
  • E. Grubbs catalyst
    Grubbs catalyst is a family of ruthenium-based organometallic complexes widely used to catalyze olefin metathesis reactions in organic and polymer chemistry.
  • 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_69d8b914530c8190b4474d862a2b2a1b completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e500fc49b88190bd5b562e0a959e9d completed April 19, 2026, 4:21 p.m.
NED1 Entity disambiguation (via context triple) batch_6a03bb5612448190a72548b7dd7c3dc7 completed May 12, 2026, 11:44 p.m.
NEDg Description generation batch_6a03bbfa0da481908bb0e388dcbe9913 completed May 12, 2026, 11:47 p.m.
NED2 Entity disambiguation (via description) batch_6a03bd6078b88190887a32099fc31db0 completed May 12, 2026, 11:53 p.m.
Created at: April 10, 2026, 10:35 a.m.