service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
mtwtf,1,1,1,1,1,0,0,20110101,20130201
sat,0,0,0,0,0,1,0,20110101,20130201
mf,1,0,0,0,1,0,0,20110101,20130201
w,0,0,1,0,0,0,0,20110101,20130201
mwf,1,0,1,0,1,0,0,20110101,20130201
tth,0,1,0,1,0,0,0,20110101,20130201
