The category "<dig_in_vehicle_command-user_response-gapsout_null-gapsin_null>" can be expressed as follows:

<dig_in_vehicle_command-user_response-gapsout_null-gapsin_null>

<dig_in_verb-located> <other_unit-user_response-controlled_unit-gapsout_null-gapsin_null> <point_location_mod-gapsout_null-gapsin_null>

<dig_in_verb-not_located> <other_unit-user_response-controlled_unit-gapsout_null-gapsin_null>