#!/usr/bin/env python
# http://katazen.blogspot.com/2014/04/006-python-cookbook-01-09-finding-common.html
# http://katazen.blogspot.com/2014/04/006-python-cookbook-01-12-most.html
# http://stackoverflow.com/questions/743806/split-string-into-a-list-in-python
# http://www.saltycrane.com/blog/2007/09/how-to-sort-python-dictionary-by-keys/
Requirements:
- There is one text section and it needs to select Top 10 keywords, which occurs at least thrice.
- Even there is two text sections, it is still easy to merge the meta statistic.
- It should be friendly to redirect to formatted output, such as CSV for Weka.