====================================
------------------------------------
[xianan]    combination count: 4
------------------------------------
xi'a'nan
xi'an'an
xia'nan
xian'an
====================================
====================================
------------------------------------
[fanganzhegefangan]    combination count: 4
------------------------------------
fan'gan'zhe'ge'fan'gan
fan'gan'zhe'ge'fang'an
fang'an'zhe'ge'fan'gan
fang'an'zhe'ge'fang'an
====================================
====================================
------------------------------------
[haha]    combination count: 1
------------------------------------
ha'ha
====================================
