-ey bbb bbe bbi bbn bbo bby be- beb bee bei ben beo bey bez bi- bib bie bii bin bio biy biz bnb bne bni bnn bno bnz bob boe boi bon boo boy boz by- bye byi byn byo byz bze bzn bzo bzz ebb ebe ebi ebn ebo eby eeb eee een eeo eey eib eie eii ein eio en- enb ene eni enn eno eny enz eo- eob eoe eoi eon eoo eye eyn eyo eze ezo ezz ibb ibe ibi ibn ibo iby ibz ie- iee iei ien iey iib iie iii iin iio in- inb ine ini inn ino iny io- iob ioe ioi ion ioo iye iyo iyy ize izi izo izy izz n-i nbb nbe nbi nbn nbo ne- neb nee nei nen neo ney nez nib nie nii nin nio niz nnb nne nni nnn nno nnz no- nob noe noi non noo noy noz nye nyn nyo nyy nzb nze nzi nzo nzz o-i ob- obb obe obi obn obo oby oeb oee oei oen oeo oey oib oie oii oin oio oiz on- onb one oni onn ono ony oo- oob ooi oon ooo oye oyi oyo oze ozo ozz ybe ybi yby ybz yeb yee yei yen yeo yey yez yie yii yin yio yiz yne ynn yny yob yoe yoi yon yoo yoy yyb yye yyy yyz yzb yzy zbb zby zeb zee zen zeo zez zib zie zin zio ziz zne znn zno zo- zob zoe zoi zon zoo zzy zzz