A very simple sentence generator

Here is a tiny lexicon and mini grammar with only one rule which defines a sentence as consisting of five words: an article, a noun, a verb, and again an article and a noun.

word(article,a).
word(article,every).
word(noun,criminal).
word(noun,'big kahuna burger').
word(verb,eats).
word(verb,likes).
     
sentence(Word1,Word2,Word3,Word4,Word5) :-
        word(article,Word1),
        word(noun,Word2),
        word(verb,Word3),
        word(article,Word4),
        word(noun,Word5).

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What query do you have to pose in order to find out which sentences the grammar can generate? In which order will Prolog generate the sentences? Make a prediction about the order, then try it out. If it is not clear for you why Prolog generates the sentence in the order that you are seeing, do a trace.
Solution

Back to the practical session of day 2.