service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
LS,1,1,1,1,1,1,0,20000101,20990101
DF,0,0,0,0,0,0,1,20000101,20990101
LV,1,1,1,1,1,0,0,20000101,20990101
LD,1,1,1,1,1,1,1,20000101,20990101