-al -er a-a a-b a-i a-t aaa aab aae aai aak aal aar aat aav ab- aba abb abe abi abk abl abr abt abv aea aeb aee aei aek ael aer aet aev ai- aia aib aie aii aik ail air ait aiv aka akb ake aki akk akl akr akv al- ala alb ale ali alk all alr alt alv ar- ara arb are ari ark arl arr art arv at- ata atb ate ati atl atr att atv av- ava avb ave avi avk avl avr avt baa bab bae bai bak bal bar bat bav bba bbb bbe bbi bbk bbl bbr bbt be- bea beb bee bei bek bel ber bet bev bi- bia bib bie bii bik bil bir bit biv bka bkb bke bkk bkl bkr bkt bkv bla blb ble bli blk bll blr blt blv bra brb bre bri brk brl brr brt brv bta btb bte bti btk btl btr btt btv bva bvb bve bvi bvk bvl bvr bvt bvv eaa eab eae eai eak eal ear eat eav eba ebb ebe ebi ebk ebl ebr ebt ebv eea eeb eee eek eel eer eet eev eia eib eie eii eik eil eir eit eiv eka ekb eke eki ekl ekr ekt ekv ela elb ele eli elk ell elr elt elv era erb ere eri erk erl err ert erv eta etb ete eti etk etl etr ett etv eva evb eve evi evl evr evt evv i-v ia- iaa iab iae iai ial iar iat iav iba ibb ibe ibi ibk ibl ibr ibt ibv ie- iea iee iei iek iel ier iet iev iia iib iie iii iil iir iit ika ikb ike iki ikk ikl ikr ikt ikv il- ila ilb ile ili ilk ill ilr ilt ilv ir- ira irb ire iri irk irl irr irt irv ita itb ite iti itk itl itt itv iva ivb ive ivi ivl ivr ivt ivv k-t ka- kaa kab kae kai kak kal kar kat kav kba kbb kbe kbi kbk kbl kbr ke- kea keb kee kei kek kel ker ket kev kia kib kie kii kik kil kir kit kiv kkb kke kki kkk kkl kkr kkt kkv kl- kla klb kli klr klt klv kra kri krk krl krr krt krv kta ktb kte ktk ktl ktr ktt ktv kva kvb kvi kvk kvr kvv la- laa lab lae lai lak lal lar lat lav lba lbb lbe lbi lbk lbl lbr lbt lbv lea leb lee lei lek lel ler let lev lia lib lie lii lik lil lir lit liv lka lkb lkl lkr lkt lla llb lle lli llk lll llr llt llv lra lrb lri lrk lrr lrt lrv lta ltb lte lti ltk ltl ltr ltt ltv lva lvb lve lvi lvl lvr lvt lvv ra- raa rab rae rai rak ral rar rat rav rba rbb rbe rbi rbk rbl rbr rbt re- rea reb ree rei rek rel rer ret rev ria rib rie rii rik ril rir rit riv rkb rke rkk rkt rkv rla rle rli rll rlr rlt rra rrb rri rrk rrl rrr rrt rta rtb rte rti rtk rtl rtr rtt rtv rva rvb rve rvi rvl rvr rvt rvv taa tab tae tai tak tal tar tat tav tba tbb tbe tbi tbk tbl tbr tbt tbv te- tea teb tee tei tek tel ter tet tev tia tib tie tii tik til tir tit tiv tka tkb tke tkk tkl tkr tkt tla tle tli tlk tll tlr tlt tlv tra trb tre tri trk trl trr trt trv tta ttb tte tti ttk ttl ttr ttt ttv tva tvb tve tvi tvk tvl tvr tvt v-a v-e vaa vab vae vai vak val var vat vav vba vbi vbk vbl vbr vbv vea veb vee vei vek vel ver vet vi- via vib vie vii vik vil vir vit viv vka vkb vkt vl- vla vlb vle vlk vll vlt vlv vra vrb vre vri vrk vrr vrt vta vtb vte vti vtk vtl vtr vtt vtv vva vvb vvi vvr vvt vvv