The rules that use the category "<yes_no_utterance>" are:

<utterance-last_state_command-discourse_user_response-mc>

<yes_no_utterance>

<yes_no_utterance> <assertion-user_response>

<utterance-discourse_system_utterance-mc>

<yes_no_utterance>

<yes_no_utterance> <assertion-system_utterance>

<utterance-discourse_command-mc>

<yes_no_utterance> <assertion-command>