intensifiers and comparison and can also appear in predicate position. Within this central zone, evaluative adjectives typically occur first, and the usual order for the rest is nonderived adjectives, then adjectives derived from verbs, and finally adjectives derived from nouns. The post-central zone includes participles and color terms. The pre-head zone includes adjectives denoting provenance, adjectives with the meaning of "relating to (noun)" (such as annual and political), and nouns. The Cambridge Grammar of the English Language proposes two zones: early pre-head modifiers and residual pre-head modifiers. Early pre-head modifiers include cardinal and ordinal numbers numerals (e.g., two, second), superlative adjectives (e.g., largest, youngest), and primacy adjectives (e.g., key, primary). Residual pre-head modifiers include all other pre-head internal modifiers. Order of post-head internal dependents The category "post-head internal dependents" includes post-head modifiers and complements. Though modifiers tend not to occur between complements and their heads, The Cambridge Grammar of the English Language does not characterize this tendency as a rigid ordering constraint because the order is also affected by the weight of the constituent, with lighter dependents typically occurring before heavy dependents. In the noun phrase the rumor in the city that Minakshi had decreed that no white woman could live for long within sight of her temple, for example, the modifier in the city separates the head rumor from the complement that Minakshi had decreed that no white woman could live for long within sight of her temple because the complement is relatively heavy while the modifier is relatively light. Nouns versus other lexical categories Adjectives Nouns and adjectives in English can generally be distinguished by their grammatical features: Prototypical nouns can inflect for number while adjectives cannot. Prototypical adjectives can inflect for degree of comparison while nouns cannot. Prototypical nouns head phrases that can function as subject, direct object, and indirect object while prototypical adjectives head phrases that can function as pre-head modifier of nouns and subject-related complement. Prototypical adjectives can be modified by very while nouns cannot. Nouns can head phrases containing determinatives and predeterminatives while adjectives cannot. The following table summarizes some of these characteristics: In noun phrases such as the boy actor, words like boy do not fall neatly into the categories noun or adjective. Boy is more like an adjective than a noun in that it functions as a pre-head modifier of a noun, which is a function prototypically filled by adjective phrases, and