Grossberg and colleagues solved the hyperonym problem over a decade ago
Jeffrey S. Bowers · Behavioral and Brain Sciences · 1999
Levelt et al. describe a model of speech production in which lemma access is achieved via input from nondecompositional conceptual representations. They claim that existing decompositional theories are unable to account for lexical retrieval because of the so-called hyperonym problem. However, existing decompositional models have solved a formally equivalent problem.