> consult book about ghosts
special_number = 0
consult_words = 1
consult_from = 4
You discover nothing of interest in the book.

> read about ghosts in book
special_number = 0
consult_words = 1
consult_from = 3
You discover nothing of interest in the book.

> ask john about ghosts
???
special_number = 0
consult_words = 1
consult_from = 4
John ignores your question.

> answer ghosts to john
???
special_number = 0
consult_words = 1
consult_from = 2
no answer.

> consult book about apple
special_number = 0
consult_words = 1
consult_from = 4
You discover nothing of interest in the book.

> read about apple in book
special_number = 0
consult_words = 1
consult_from = 3
You discover nothing of interest in the book.

> ask john about apple
apple
special_number = 0
consult_words = 1
consult_from = 4
John ignores your question.

> answer apple to john
apple
special_number = 0
consult_words = 1
consult_from = 2
no answer.

> quit
Are you sure you want to quit? yes

[Hit any key to exit.]