Discourse referents in mental spaces - A case of anaphoric reference to indefinite noun phrasers with nonspecific interpretation

There is a certain semantic constraint on the anaphoric relation between an indefinite noun phrase with nonspecific reading and a definite noun phrase or a pronoun which has the indefinite NP as its intended antecedent. I assume this constraint to be, above all, cognitively governed and argue how the basic facts discussed in the previous research and the possible counterexamples can be treated in the framework of The Theory of Mental Spaces, which was proposed and has been developed by G. Fauconnier.