2020

ConjNLI: Natural Language Inference Over Conjunctive Sentences

Saha, Swarnadeep, Nie, Yixin, Bansal, Mohit

Understand

Reasoning about conjuncts in conjunctive sentences is important for a deeper understanding of conjunctions in English and also how their usages and semantics differ from conjunctive and disjunctive boolean logic.

  • Existing NLI stress tests do not consider non-boolean usages of conjunctions and use templates for testing such model knowledge.
  • Hence, we introduce ConjNLI, a challenge stress-test for natural language inference over conjunctive sentences, where the premise differs from the hypothesis by conjuncts removed, added, or replaced.
  • These sentences contain single and multiple instances of coordinating conjunctions ("and", "or", "but", "nor") with quantifiers, negations, and requiring diverse boolean and non-boolean inferences over conjuncts.

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