substract B - A
merge A&B
parse A and paste to B
sort A
remove doubles from A
sort B
remove doubles from B
sort C
remove doubles from C
make deck for Anki
make deck with imgs
parse deck without imgs
parse deck with imgs
A: learned or raw subs
B: a dump of words
C: RESULT
D: translations for C
I: imgs
E: Anki dic