The category "<fly_command-discourse_all-gapsout_null-gapsin_null>" can be expressed as follows:

<fly_command-discourse_all-gapsout_null-gapsin_null>

<fly_command-discourse_all-gapsout_null-gapsin_null> <move_mod-gapsout_null-gapsin_null-not_compass_direction>

<fly_command-discourse_all-gapsout_null-gapsin_null-not_with_compass_direction> <move_mod-gapsout_null-gapsin_null-compass_direction>

<fly_verb-discourse_all>