service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
sat,0,0,0,0,0,1,0,20160601,20180301
sun,0,0,0,0,0,0,1,20160601,20180301
mtwtf,1,1,1,1,1,0,0,20160601,20180301
wtf,0,0,1,1,1,0,0,20160601,20180301
mt,1,1,0,0,0,0,0,20160601,20180301
