Transformational grammar; Minimalist program; Economy of derivation; Greed, principle of; Procrastinate, principle of; Full interpretation, principle of; Principles and parameters theory; Prinzipien- und Parametermodell; Generative grammar ; Ambiguity (theory of grammar) ; Ambiguität (Grammatiktheorie) ; Principles and parameters theory; Prinzipien- und Parametermodell; Parametrization ; UG; Universal grammar ; Grammatical theory; Theory of grammar ; Category (theory of grammar) ; Minimalist program; Generative theory of language