service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
cal1-6,0,0,0,0,0,0,0,20260420,20260515
cal2-2,0,0,0,0,0,0,0,20260425,20260516
cal3-mon-tue-wed-thu-4,1,1,1,1,0,0,0,20260427,20260529
cal4-sat-1,0,0,0,0,0,1,0,20260502,20260523
cal5-8,0,0,0,0,0,0,0,20260420,20260516
cal6-mon-tue-thu-4,1,1,0,1,0,0,0,20260427,20260529
cal7-wed,0,0,1,0,0,0,0,20260429,20260527
cal8-mon-tue-wed-thu-fri-sat-4,1,1,1,1,1,1,0,20260427,20260529