Language Generation

Sentences can be generated from a grammar by the following procedure:

• Start with the sentence symbol, <S>.

• Repeat until no nonterminal symbols remain:
  • Choose a nonterminal symbol in the current string.

  • Choose a production that begins with that nonterminal.

  • Replace the nonterminal by the right-hand side of the production.

<s>
<np> <vp>
<art> <noun> <vp>
the <noun> <vp>
the dog <vp>
the dog <verb> <np>
the dog <verb> <art> <noun>
the dog <verb> the <noun>
the dog bit the <noun>
the dog bit the boy