September 5 2016 1:47:42	cuhk0905	LOGGED_IN	1473054461763	1	Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_5 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13G36 Safari/601.1	
September 5 2016 1:50:27	cuhk0905	SOUND_DONE	1473054626244	1	386	
September 5 2016 1:50:53	cuhk0905	ANSWER_SUBMITTED	1473054652918	1	386	386	true	0	
September 5 2016 1:51:01	cuhk0905	SOUND_DONE	1473054661042	2	612	
September 5 2016 1:51:10	cuhk0905	ANSWER_SUBMITTED	1473054669744	2	612	111	false	1	
September 5 2016 1:51:20	cuhk0905	SOUND_DONE	1473054680327	3	3417	
September 5 2016 1:51:28	cuhk0905	ANSWER_SUBMITTED	1473054687617	3	3417	111	false	1	
September 5 2016 1:51:37	cuhk0905	SOUND_DONE	1473054696980	4	6158	
September 5 2016 1:51:43	cuhk0905	ANSWER_SUBMITTED	1473054702944	4	6158	111	false	2