import collections
text = 'abba com mother bill mother com abba dog abba mother com'
array = text.split()
counter = collections.Counter()
for n in range(len(array) - 2):
three = ' '.join(sorted(array[n:n + 3]))
counter[three] += 1
print(counter.most_common(1))
aW1wb3J0IGNvbGxlY3Rpb25zCgoKdGV4dCA9ICdhYmJhIGNvbSBtb3RoZXIgYmlsbCBtb3RoZXIgY29tIGFiYmEgZG9nIGFiYmEgbW90aGVyIGNvbScKYXJyYXkgPSB0ZXh0LnNwbGl0KCkKY291bnRlciA9IGNvbGxlY3Rpb25zLkNvdW50ZXIoKQoKZm9yIG4gaW4gcmFuZ2UobGVuKGFycmF5KSAtIDIpOgogICAgdGhyZWUgPSAnICcuam9pbihzb3J0ZWQoYXJyYXlbbjpuICsgM10pKQogICAgY291bnRlclt0aHJlZV0gKz0gMQoKcHJpbnQoY291bnRlci5tb3N0X2NvbW1vbigxKSkK