service_id,start_date,end_date,sunday,monday,tuesday,wednesday,thursday,friday,saturday
SAT,20101118,20191231,0,0,0,0,0,0,1
SUN,20101118,20191231,1,0,0,0,0,0,0
WKDY,20101118,20191231,0,1,1,1,1,1,0
