February 12 2017 22:45:20	cuhkgao1	LOGGED_IN	1486957520200	1	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/602.4.8 (KHTML, like Gecko) Version/10.0.3 Safari/602.4.8	
February 12 2017 22:45:39	cuhkgao1	SOUND_DONE	1486957539131	1	386	
February 12 2017 22:45:44	cuhkgao1	ANSWER_SUBMITTED	1486957544961	1	386	333	false	1	
February 12 2017 22:45:52	cuhkgao1	SOUND_DONE	1486957552747	2	612	
February 12 2017 22:45:55	cuhkgao1	ANSWER_SUBMITTED	1486957555716	2	612	111	false	2