-al -er -ic a-a a-b a-c a-i aaa aab aac aae aag aai aal aar aau ab- aba abb abc abe abg abi abl abr abu ac- aca acb acc ace acg aci acl acr acu aea aeb aec aee aeg aei ael aer aeu ag- aga agb agc age agg agi agl agr agu ai- aia aib aic aie aig aii ail air aiu al- ala alb alc ale alg ali all alr alu ar- ara arb arc are arg ari arl arr aru au- aua aub auc aue aug aui aul aur b-u baa bab bac bae bag bai bal bar bau bba bbb bbc bbe bbg bbi bbl bbr bbu bca bcb bcc bce bcg bci bcl bcr bcu be- bea beb bec bee beg bei bel ber beu bga bgb bgc bge bgg bgi bgl bgr bgu bi- bia bib bic bie big bii bil bir biu bla blb blc ble blg bli bll blr blu bra brb bre brg bri brl brr bru bua bub buc bue bug bui bul bur buu c-- caa cab cac cae cag cai cal car cau cba cbb cbc cbe cbg cbi cbl cbr cbu cca ccb ccc cce ccg cci ccl ccr ccu ce- cea ceb cec cee ceg cei cel cer ceu cga cgb cgc cge cgg cgi cgl cgr cgu ci- cia cib cic cie cig cii cil cir ciu cl- cla clb clc cle clg cli cll clr clu cra crb crc cre crg cri crl crr cru cua cub cuc cue cug cui cul cur cuu eaa eab eac eae eag eai eal ear eau eba ebb ebc ebe ebg ebi ebl ebr ebu ec- eca ecb ecc ece ecg eci ecl ecr ecu eea eeb eec eee eeg eel eer ega egb egc ege egg egi egl egr egu eia eib eic eie eig eii eil eir eiu ela elb elc ele elg eli ell elr elu era erb erc ere erg eri erl err eru eu- eua eub euc eue eug eui eul eur gaa gab gac gae gag gai gal gar gau gba gbc gbe gbg gbi gbl gbr gbu gca gcb gcc gce gcg gci gcl gcr gcu ge- gea geb gec gee geg gei gel ger geu gga ggb ggc ggg ggi ggr ggu gia gib gic gie gig gii gil gir giu gla glb glc gle glg gli gll glr glu gra grb grc gre grg gri grl grr gru gu- gua gub guc gue gug gui gul gur guu ia- iaa iab iac iae iag iai ial iar iau iba ibb ibc ibe ibg ibi ibl ibr ibu ica icb icc ice icg ici icl icr icu ie- iea iec iee ieg iei iel ier iga igb igc ige igg igi igl igr igu iia iib iic iie iii iil iir iiu il- ila ilb ilc ile ilg ili ill ilr ilu ir- ira irb irc ire irg iri irl irr iru iu- iua iub iuc iue iug iui iur la- laa lab lac lae lag lai lal lar lau lba lbb lbc lbe lbg lbi lbl lbr lbu lca lcb lcc lce lcg lci lcl lcr lcu lea leb lec lee leg lei lel ler leu lga lgb lgc lge lgg lgi lgl lgr lgu lia lib lic lie lig lii lil lir liu lla llb llc lle llg lli lll llr llu lra lrb lrc lrg lri lrr lru lua lub luc lue lug lui lul lur luu ra- raa rab rac rae rag rai ral rar rau rba rbb rbc rbe rbg rbi rbl rbr rbu rca rcb rcc rce rcg rci rcl rcr rcu re- rea reb rec ree reg rei rel rer reu rga rgb rgc rge rgg rgi rgr ria rib ric rie rig rii ril rir rla rlc rle rlg rli rll rlr rlu rra rrb rrc rrg rri rrl rrr rru rua rub ruc rue rug rui rur ruu ua- uaa uab uac uae uag uai ual uar uau uba ubb ubc ube ubg ubi ubl ubr ubu uca ucb ucc uce ucg uci ucl ucr ucu uea ueb uec uee ueg uei uel uer uga ugb ugc uge ugg ugi ugl ugr ugu uia uib uic uie uig uii uil uir uiu ula ulb ulc ule ulg uli ull ulr ulu ur- ura urb urc ure urg uri url urr uru uua uuc uue uug uur uuu

a-be a-ii aaaa aaab aaac aaae aaai aaal aaar aaba aabb aabc aabi aabl aaca aacb aacc aace aaci aacl aacr aacu aaea aaec aage aaib aaic aaii aala aalc aale aali aall aalu aara aarc aare aari aaru abaa abab abac abae abag abai abal abar abau abb- abba abbb abbe abbi abbr abca abcb abcc abci abcl abcr abec abee abel aber abgl abia abib abic abie abig abil abir abiu abla able abra abrc abri abua abue abug abul acaa acab acac acae acag acai acar acba acbl acca accc acce acci accu ace- acea acec acel acer acga acgi acgr aci- acia acic acie acir acla aclc acle acli aclr aclu acr- acra acrc acre acri acrr acu- acue acul acur aeac aebi aecb aeci aecl aeer aega aela aelc aer- aera aerc aeri agac agag agai agal agar agau agba agca agcc agce agea agee agei agel ager agga agge aggi aggu agia agib agic agie agig agii agil agir agla aglc agle agli aglu agra agre agri agrl agua ague agui agul agur aiai aiba aibl aica aicc aice aicr aiea aiee aiel aiga aiia aiib aiic aiir aila aile aili ailu aira aire airi aiui alaa alac alae alag alai alal alar alau alb- alba albc albe albi albu alca alcc alce alea alec alee aleg aler aleu alg- alga alge algi ali- alia alib alie alig alii alil alir aliu all- alla alle alli alll allr allu alua alug alui alur arab arac arae arag arai aral arar arau arba arbe arbi arc-