Grammar question : multiple keywords

Hi,

I'd like to know if that's possible to build a grammar able to recognize
multiple keywords, for example, "offer John a cookie", "send Tabatha
flowers", without building a grammar like :

<grammar>
   <![CDATA[[
    (offer John cookie) {<action="offer"><contact="John"><object="cookie">}
    (offer John flowers)
{<action="offer"><contact="John"><object="flowers">}
    (send John cookie) {<action="send "><contact="John"><object="cookie">}
    (send John flowers) {<action="send "><contact="John"><object="flowers">}
    (offer Tabatha cookie) {<action="offer"><contact="Tabatha
"><object="cookie">}
    (offer Tabatha flowers) {<action="offer"><contact="Tabatha
"><object="flowers">}
    (send Tabatha cookie) {<action="send "><contact="Tabatha
"><object="cookie">}
    (send Tabatha flowers) {<action="send "><contact="Tabatha
"><object="flowers">}
   ]]]>
</grammar>

because if you have a lot of actions and contacts, the grammar will be too huge to describe all combinations.


Thanks for your help