Unhasshable type 'list'

[woooee]

And instead of converting to a set on each pass through the for, convert once before the for and check that

KATA_GANTI_1    = ['saya','Saya', 'mereka', 'kami',  'kita', 'aku', 'beta', 'daku', 'engkau']
KATA_GANTI_2    = ['anda' , 'kamu', 'engkau', 'kau', 'dikau', 'mu' , 'kalian' , 'kamu sekalian'
KATA_GANTI_3    = ['mereka','nya','ia','beliau','dia','bapak', 'ayah', 'ibu', 'mama' 'kakak', '

## can also be done on one line
all_as_set=KATA_GANTI_1 + KATA_GANTI_2 + KATA_GANTI_3
all_as_set=set(all_as_set)