service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
mtwtf,1,1,1,1,1,0,0,20171204,20181231
mtwtfs,1,1,1,1,1,1,0,20171204,20181231
ss,0,0,0,0,0,1,1,20171204,20181231
sat,0,0,0,0,0,1,0,20171204,20181231
sun,0,0,0,0,0,0,1,20171204,20181231
