service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
WD,1,1,1,1,1,0,0,20090101,20091231
S,0,0,0,0,0,1,0,20090101,20091231
WDS,1,1,1,1,1,1,0,20090101,20091231