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

<suppress_by_fire_command-gapsout_null-gapsin_null>

<movement_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null> and <suppress_by_fire_verb> <by_fire_phrase-direct>

<movement_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null> and <suppress_by_fire_verb> <enemy_loc-gapsout_null-gapsin_null> <by_fire_phrase-direct>

<attack_by_fire_command-gapsout_null-gapsin_null>

<movement_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null> and <engage_verb> <enemy_loc-gapsout_null-gapsin_null> <by_fire_phrase-direct>

<movement_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null> and <plain_attack_by_fire_verb> <by_fire_phrase-direct>

<movement_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null> and <plain_attack_by_fire_verb> <enemy_loc-gapsout_null-gapsin_null> <by_fire_phrase-direct>

<engagement_loc_mod-gapsout_null-gapsin_null>

<location_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_np_gap-gapsin_np_gap>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-command-gapsout_null-gapsin_null-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-discourse_all-gapsout_null-gapsin_null-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_null-gapsin_null-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<hasty_occupy_command>

<consolidate_verb> on <engagement_loc-gapsout_null-gapsin_null>

<displace_base_of_fire_command>

<displace_verb> <base_of_fire_phrase> to <engagement_loc-gapsout_null-gapsin_null>

<displace_verb> to <engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_pp_gap-gapsin_pp_gap-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-command-gapsout_np_gap-gapsin_np_gap-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_np_gap-gapsin_np_gap-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-gapsout_null-gapsin_null-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<control_measure_clause>

<unit-gapsout_null-gapsin_null> <reach_verb> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_pp_gap-gapsin_pp_gap>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-gapsout_null-gapsin_null>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<fire_modification_command>

concentrate <fire_word> on <engagement_loc-gapsout_null-gapsin_null>

<move_mod-gapsout_pp_gap-gapsin_pp_gap-not_compass_direction>

from <engagement_loc-gapsout_null-gapsin_null> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<enemy_loc-gapsout_np_gap-gapsin_np_gap>

<engagement_loc-gapsout_null-gapsin_null>

<objective_mod-gapsout_null-gapsin_null>

<to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-command-gapsout_null-gapsin_null>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<move_mod-gapsout_null-gapsin_null-not_compass_direction>

from <engagement_loc-gapsout_null-gapsin_null> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-user_response-gapsout_null-gapsin_null-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-user_response-gapsout_np_gap-gapsin_np_gap-not_with_compass_direction>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-user_response-gapsout_null-gapsin_null>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<move_mod-gapsout_np_gap-gapsin_np_gap-not_compass_direction>

from <engagement_loc-gapsout_null-gapsin_null> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-user_response-gapsout_np_gap-gapsin_np_gap>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-command-gapsout_np_gap-gapsin_np_gap>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<postnommod-attack>

<on_prep> <engagement_loc-gapsout_null-gapsin_null>

<enemy_loc-gapsout_null-gapsin_null>

<engagement_loc-gapsout_null-gapsin_null>

<movement_command-system_utterance-gapsout_null-gapsin_null>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>

<movement_command-discourse_all-gapsout_null-gapsin_null>

<report_verb> <to_prep> <engagement_loc-gapsout_null-gapsin_null>