15 ROUGE-SU4 Average_R: 0.13163342777777815 ROUGE-SU4 Average_P: 0.131227383333333 F=13.14
	(0.13163342777777815*0.131227383333333*2)
	15 ROUGE-2 Average_R: 0.072510115 ROUGE-2 Average_P: 0.0723482777777778 F=7.24
	0.072510115*0.0723482777777778*2/(0.072510115+0.0723482777777778)