service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
mwf,1,0,1,0,1,0,0,20130501,20200804
mf,1,0,0,0,1,0,0,20130501,20200804
w,0,0,1,0,0,0,0,20130501,20200804
wc,0,0,1,0,0,0,0,20130501,20200804
th,0,0,0,1,0,0,0,20140710,20200804
