service_id,date,exception_type
mf,20160215,2
mwf,20160215,2
mf,20160530,2
mwf,20160530,2
mf,20160704,2
mwf,20160704,2
mf,20160905,2
mwf,20160905,2
th,20161124,2
mf,20161125,2
mwf,20161125,2
mf,20161226,2
mwf,20161226,2
