Chapter 9 analyzes the structure of Cl- adjectives in contrast to Th-adjectives. Unlike Th-adjectives, Cl-adjectives are not arguments of the noun but rather they relate the noun to a domain according to which the NP is classified. Hence, they are restrictive modifiers of the noun. This is highlighted on the basis of several tests, i.e., they do not correspond to genitives, are predicative, can occur with the demonstrative article cel and correspond to de modifier phrases in Romance. In the light of all this I propose that a restrictive relative clause stands for the Classificatory adjective that is the right sister of nominal head (NP) with which it forms a complex lexical unit.