null_vector
APAP	1
COMW	1
HOFI	1
HWAM	1
JABW	1
JAWE	1
NOCA	1
OAAM	1
RBLE	1
RCCA	1
RVBU	1
RWBU	1
SPDO	1
WRSH	1
ZEDO	1
ERFR	1
KAPH	1