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9 lines
301 B
EBNF
9 lines
301 B
EBNF
S ::= NP VP ;
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VP ::= V | TV NP | "is" A ;
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NP ::= ("this" | "that" | "the" | "a") CN ;
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CN ::= A CN ;
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CN ::= "bird" | "boy" | "man" | "louse" | "snake" | "worm" ;
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A ::= "big" | "green" | "rotten" | "thick" | "warm" ;
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V ::= "laughs" | "sleeps" | "swims" ;
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TV ::= "eats" | "kills" | "washes" ;
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