uniq_sublist

import sys
sys.path.append(r'C:\Program Files (x86)\IronPython 2.7\Lib')
from collections import Counter

a=[]
for x in [Counter(i).items() for i in IN[0]]:
    for z in x:
        if z[1]>1:
            b=[]
            for s in range(0, z[1]):
                b.append(z[0])
            a.append(b)
OUT = a