17	21	26	4830	Otani	dummy	0	2007/12/17/10:12:19(172.16.44.137)	0
17	26	31	4830	Otani	dummy	0	2007/12/17/14:40:40(172.16.44.137)	0
19	38	48	6909	T.Konno	dummy	0	2007/12/19/18:13:28(130.34.95.37)	0
20	30	48	6909	T.Konno	dummy	0	2007/12/19/21:35:23(130.34.95.37)	0