Section 20 - Ion Cannon
Understand "fire [thing]" as firing.
Firing is an action applying to one thing.
To fire is a verb.
Check firing a thing:
If the noun is not the ion cannon control:
say "[The actor] [can't fire] [the noun].";
stop the action.
Carry out firing the ion cannon:
now the Star Destroyer is broken.
Report firing:
say "[The actor] [fire] [the noun]."