service_id,date,exception_type
MF,20100531,2
SS,20100531,1
MF,20100705,2
SS,20100705,1

SS,20100515,2
WO,20100515,1
SS,20100516,2
WO,20100516,1
SM,20100517,2
WOM,20100517,1

SS,20100807,2
WO,20100807,1
SS,20100808,2
WO,20100808,1
SM,20100809,2
WOM,20100809,1

SS,20100828,2
WO,20100828,1
SS,20100829,2
WO,20100829,1
SM,20100830,2
WOM,20100830,1

SS,20100918,2
WO,20100918,1
SS,20100919,2
WO,20100919,1
SM,20100920,2
WOM,20100920,1

SS,20101002,2
WO,20101002,1
SS,20101003,2
WO,20101003,1
SM,20101004,2
WOM,20101004,1

SS,20101023,2
WO,20101023,1
SS,20101024,2
WO,20101024,1
SM,20101025,2
WOM,20101025,1

SS,20101106,2
WO,20101106,1
SS,20101107,2
WO,20101107,1
SM,20101108,2
WOM,20101108,1