4
1
3
[]	2020-02-27
['o','a']	2020-02-27
2
[]	2020-02-27
['e','a','b']	2020-02-27
['o','a']	2020-02-27
1
[]	2020-02-27
['e','a','b']	2020-02-27
['o','a']	2020-02-27
['o','a','b','c']	2020-02-27
0
[]	2020-02-27
['e','a','b']	2020-02-27
['e','a','b','c','d']	2020-02-27
['o','a']	2020-02-27
['o','a','b','c']	2020-02-27