Part 25 - Scratching
Scratching is an action applying to nothing.
Understand "scratch" and "itch" as scratching.
Report scratching:
say "You scratch your ear vigorously."
Scratching at is an action applying to one touchable thing.
Understand "scratch [something]" as scratching at.
Understand "itch [something]" as scratching at.
Understand "scratch at [something]" as scratching at.
Report scratching at:
say "You scratch [the noun]."