service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
MF,1,1,1,1,1,0,0,20260101,20261231
MTh_School,1,1,1,1,0,0,0,20260101,20260507
MF_School,1,1,1,1,1,0,0,20260101,20260508
Sa,0,0,0,0,0,1,0,20260103,20261226
Su,0,0,0,0,0,0,1,20260104,20261227