Define an ATN parser for the dog's world grammar with adjectives (Exercise 7) and prepositional phrases (Exercise 8).

Data from exercise 7 

Extend the dogs world grammar to include adjectives in noun phrases. Be sure to allow an indeterminate number of adjectives. Use a recursive rule, adjective_list, that either is empty or contains an adjective followed by an adjective list. Map this grammar into transition networks.

Data from Exercise 8

Add the following context-free grammar rules to the dog's world grammar of Section 15.2.1.  Map the resulting grammar into transition networks.  sentence ↔ noun_phrase verb_phrase prepositional_phrase
prepositional_phrase ↔ preposition noun_phrase  preposition ↔ with preposition ↔ to preposition ↔ on