The rules that use the category "<nl_command-user_response>" are:

<response_utterance-discourse_user_response>

<nl_command-user_response>

<nl_command-user_response>

<basic_nl_command-user_response-gapsout_null-gapsin_null> and <nl_command-user_response>

<response_utterance-discourse_user_response-last_state_command>

<nl_command-user_response>