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:- category(hitchhikers_guide_to_the_galaxy).

	:- multifile(logtalk::message_tokens//2).
	:- dynamic(logtalk::message_tokens//2).

	% abstract the question text using the atom ultimate_question
	% the second argument, hitchhikers, is the application component
	logtalk::message_tokens(ultimate_question, hitchhikers) -->
		['The answer to the ultimate question of Life, The Universe and Everything is?'-[], nl].

	:- multifile(logtalk::question_prompt_stream/4).
	:- dynamic(logtalk::question_prompt_stream/4).

	% the prompt is specified here instead of being part of the question text
	% as it will be repeated if the answer doesn't satisfy the question closure
	logtalk::question_prompt_stream(question, hitchhikers, '> ', user_input).

:- end_category.
