In a text-produqtion system high and special demands are placed on the grammar and the lexicon. This paper will view these comDonents in such a system (overview in section 1). First, the subcomponente dealing with semantic information and with syntactic information will be presented se!:arataly (section 2). The probtems of relating these two types of information are then identified (section 3). Finally, strategies designed to meet the problems are proDose¢l and discussed (section 4). One of the issues that will be illustrated is what happens when a systemic linguistic approach is combined with a KtONE like knowledge representation.