>Easy to merc
/aceg/, /alg/, /bag/, /domg/, /drg/, /egg/, /esg/, /gig/, /hanny/, /hbr/, /hsrg/, /ink/, /kfg/, /ksg/, /mggg/, /nepgen/, /nikg/, /pcrg/, /pg/, /psg/, /smbg/, /snowg/, /wtg/, /zzz/
>Hard to merc
/@/, /2hug/, /akg/, /dbg/, /fgog/, /gbfg/, /gbpen/, /gfg/, /hdg/, /hgg2d/, /lcg/, /llsifg/, /pmmm/, /skg/, /smtg/, /tf2g/, /uma/, /utg/, /vn/, /vrg/, /wowg/, /xivg/