The rules that use the category "<unit_command-system_utterance-gapsout_null-gapsin_null>" are:

<vp-base-gapsout_null-gapsin_null-unit>

<unit_command-system_utterance-gapsout_null-gapsin_null> <conj> <unit_command-system_utterance-gapsout_null-gapsin_null>

<vp-system_utterance-base-gapsout_null-gapsin_null-unit>

<unit_command-system_utterance-gapsout_null-gapsin_null>

<unit_command-system_utterance-gapsout_null-gapsin_null> <conj> <unit_command-system_utterance-gapsout_null-gapsin_null>

<vp-system_utterance-base-not_mod-gapsout_null-gapsin_null-unit>

<unit_command-system_utterance-gapsout_null-gapsin_null>

<unit_command-system_utterance-gapsout_null-gapsin_null> <conj> <unit_command-system_utterance-gapsout_null-gapsin_null>

<basic_nl_command-system_utterance-gapsout_null-gapsin_np_gap>

<unit_command-system_utterance-gapsout_null-gapsin_null>

<vp-base-not_mod-gapsout_null-gapsin_null-unit>

<unit_command-system_utterance-gapsout_null-gapsin_null> <conj> <unit_command-system_utterance-gapsout_null-gapsin_null>