Removing multi-national spell from 1 nation, how?

[Agrajag]

Jack_Trowell said:
Maybe with this ?

#restricted 29
#restricted 81
#restricted 82

81 and 82 being unused nation numbers (ecxept for potential future mods)

Actually, now I noticed he wants to remove the spell from just one nation according to the thread's title.
Then perhaps #restricted 29 and then #restriced for the other nation that already have it? (and using 81/82 like Jack here suggests if you need to)