service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
cal1-mon-tue-wed-thu-fri,1,1,1,1,1,0,0,20260910,20300101
cal2-sat-sun,0,0,0,0,0,1,1,20260912,20291230
cal3-wed-thu-fri,0,0,1,1,1,0,0,20260910,20291228
cal4-mon-tue,1,1,0,0,0,0,0,20260914,20300101