The category "<follow_unit_command-user_response-gapsout_null-gapsin_np_gap>" can be expressed as follows:
<follow_unit_command-user_response-gapsout_np_gap-gapsin_np_gap> <move_mod-gapsout_null-gapsin_np_gap-not_compass_direction>
<follow_unit_command-user_response-gapsout_np_gap-gapsin_np_gap-not_with_compass_direction>
<follow_unit_command-user_response-gapsout_null-gapsin_np_gap> <move_mod-gapsout_null-gapsin_null-not_compass_direction>
<follow_unit_command-user_response-gapsout_null-gapsin_np_gap-not_with_compass_direction> <move_mod-gapsout_null-gapsin_null-compass_direction>