service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
mtwtfs,1,1,1,1,1,1,0,20231101,20261101
sun,0,0,0,0,0,0,1,20231101,20261101
mwf,1,0,1,0,1,0,0,20231101,20261101
