Using Python:

Make the following modifications to the original sentence-generator program:

a. The prepositional phrase is optional. (It can appear with a certain probability.)

b. A conjunction and a second independent clause are optional: The boy took a drink and the girl played baseball.

c. An adjective is optional: the girl kicked the red ball with a sore foot.

You should add new variables for the sets of adjectives and conjunctions.

a,b,c are the orginal - this is the whole question in the book.