The category "<basic_unit_command-system_utterance-gapsout_null-gapsin_np_gap>" can be expressed as follows:

<basic_unit_command-system_utterance-gapsout_null-gapsin_np_gap>

<attach_detach_unit_command-system_utterance-gapsout_null-gapsin_np_gap>

<attach_detach_vehicle_command-gapsout_null-gapsin_np_gap>

<attack_by_fire_command-gapsout_null-gapsin_np_gap>

<breach_command-gapsout_null-gapsin_np_gap>

<concealment_command-gapsout_null-gapsin_np_gap>

<dig_in_vehicle_command-system_utterance-gapsout_null-gapsin_np_gap>

<embark_debark_command-system_utterance-gapsout_null-gapsin_np_gap>

<establish_base_of_fire_command-gapsout_null-gapsin_np_gap>

<fly_command-system_utterance-gapsout_null-gapsin_np_gap>

<follow_route_command-system_utterance-gapsout_null-gapsin_np_gap>

<follow_unit_command-system_utterance-gapsout_null-gapsin_np_gap>

<land_command-system_utterance-gapsout_null-gapsin_np_gap>

<link_command-system_utterance-gapsout_null-gapsin_np_gap>

<mine_detection_command-gapsout_null-gapsin_np_gap>

<mount_dismount_command-system_utterance-gapsout_null-gapsin_np_gap>

<movement_command-system_utterance-gapsout_null-gapsin_np_gap>

<pursue_command-system_utterance-gapsout_null-gapsin_np_gap>

<recover_command-system_utterance-gapsout_null-gapsin_np_gap>

<repair_command-system_utterance-gapsout_null-gapsin_np_gap>

<withdraw_command-system_utterance-gapsout_null-gapsin_np_gap>