vere: prune wrong motes
verified using vim regex search (and corresponding regexes for the 3, 2,
and 1 letter motes):
/c3__\(.\)\(.\)\(.\)\(.\) *c3_s4\(('\1','\2','\3','\4')\)\@!
# define c3__plet c3_s4('p','l','e','t')
# define c3__plic c3_s4('p','l','i','c')
# define c3__plin c3_s4('p','l','i','n')
-# define c3__plol c3_s4('p','l','o','m')
# define c3__plom c3_s4('p','l','o','m')
# define c3__plov c3_s4('p','l','o','v')
# define c3__plug c3_s4('p','l','u','g')
# define c3__zpdx c3_s4('z','p','d','x')
# define c3__zpfs c3_s4('z','p','f','s')
# define c3__zpgr c3_s4('z','p','g','r')
-# define c3__zphs c3_s4('z','p','h','x')
# define c3__zphx c3_s4('z','p','h','x')
# define c3__zplc c3_s4('z','p','l','c')
# define c3__zpmc c3_s4('z','p','m','c')
