def interpret(self, match):
name = match.words.tokens
return IsBook() + HasKeyword(name)
def interpret(self, match):
book = IsBook() + HasAuthor(match.author)
book_name = NameOf(book)
return book_name, "enum"
def interpret(self, match):
_author, i, j = match.author
book = IsBook() + HasAuthor(_author)
book_name = NameOf(book)
return book_name, ReturnValue(i, j)