service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
mtwtf,1,1,1,1,1,0,0,2020110,20201231
mtwtfs,1,1,1,1,1,1,0,2020110,20201231
mtwtfss,1,1,1,1,1,1,1,2020110,20201231
ss,0,0,0,0,0,1,1,2020110,20201231
sat,0,0,0,0,0,1,0,2020110,20201231
sun,0,0,0,0,0,0,1,2020110,20201231
