Book - Actions
Part - Buying
Buying it from is an action applying to two things.
Understand "buy [something] from [someone]" as buying it from.
Understand "purchase [something] from [someone]" as buying it from.
Buying it with is an action applying to two things.
Understand "buy [something] with [something]" as buying it with.
Understand "purchase [something] with [something]" as buying it with.
Check buying it with:
if the second noun is not currency:
say "[The second noun] will likely not serve as payment." instead.
Check buying it from:
if the second noun is an animal:
say "You're kidding, right?" instead;
if the second noun is not the aged woman:
say "[The second noun] [don't] appear to be selling anything." instead.
Report buying it from:
say "[The noun] [are] not for sale."
Report buying it with:
say "[The noun] [are] not for sale."
Understand "buy [something]" as a mistake ("That's a bit vague. Try 'buy [the noun] from [a random person that is not the player]' or, if it's clear who will be the subject of the action, try 'buy [the noun] with [a random thing that is currency]'.")