 The periphery by itself imposes challenges for natural language semantics and natural language ontology. The periphery, from a linguistic point of view at least, is a legitimate part of natural language (or a legitimate extension of it): technical (uses) of terms certainly have a semantics and will reflect an ontology, even if it is not the ontology of natural language, but one that goes beyond it. It is part of the task of natural language semantics to in principle allow for the semantic composition of the meaning of sentences containing philosophical (uses) of terms.