service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
WD,1,1,1,1,1,0,0,20180501,20240401
WE,0,0,0,0,0,1,0,20180501,20240401
SB,0,1,0,1,0,0,0,20180501,20240401