-er -ic a-a a-b a-c a-i aaa aab aac aae aah aai aao aar aav ab- aba abb abc abe abh abi abo abr abv ac- aca acb acc ace ach aci aco acr acv aea aeb aec aee aeh aei aeo aer aev aha ahb ahc ahe ahh ahi aho ahr ahv ai- aia aib aic aie aih aii aio air aiv aoa aob aoc aoe aoh aoi aoo aor aov ar- ara arb arc are arh ari aro arr arv av- ava avb avc ave avh avi avo avr baa bab bac bae bah bai bao bar bav bba bbb bbc bbe bbh bbi bbo bbr bca bcb bcc bce bch bci bco bcr bcv be- bea beb bec bee beh bei beo ber bev bha bhb bhc bhe bhh bhi bho bhr bhv bi- bia bib bic bie bih bii bio bir biv boa bob boc boe boh boi boo bor bov bra brb bre brh bri bro brr brv bva bvb bvc bve bvh bvi bvo bvr bvv c-- caa cab cac cae cah cai cao car cav cba cbb cbc cbe cbh cbi cbo cbr cbv cca ccb ccc cce cch cci cco ccr ccv ce- cea ceb cec cee ceh cei ceo cer cev ch- cha chb chc che chh chi cho chr chv ci- cia cib cic cie cih cii cio cir civ co- coa cob coc coe coh coi coo cor cov cra crb crc cre crh cri cro crr crv cva cvb cvc cve cvh cvi cvo cvr cvv eaa eab eac eae eah eai eao ear eav eba ebb ebc ebe ebh ebi ebo ebr ebv ec- eca ecb ecc ece ech eci eco ecr ecv eea eeb eec eee eeo eer eev eha ehb ehc ehe ehh ehi eho ehr ehv eia eib eic eie eii eio eir eiv eo- eoa eob eoc eoe eoh eoi eoo eor era erb erc ere erh eri ero err erv eva evb evc eve evh evi evo evr evv h-i haa hab hac hae hah hai hao har hav hba hbb hbc hbe hbh hbi hbo hbr hbv hca hcb hcc hce hch hci hco hcr hcv he- hea heb hec hee heh hei heo her hev hha hhb hhc hhe hhh hhi hho hhr hhv hia hib hic hie hih hii hio hir hiv hoa hob hoc hoe hoh hoi hoo hor hov hr- hra hrb hrc hre hrh hri hro hrr hrv hv- hva hvb hvc hvo hvr hvv i-v ia- iaa iab iac iae iah iai iao iar iav iba ibb ibc ibe ibh ibi ibo ibr ibv ica icb icc ice ich ici ico icr icv ie- iea iec iee iei ier iev iha ihb ihc ihe ihh ihi iho ihr ihv iia iib iic iie iih iii iio iir io- ioa iob ioc ioe ioh ioi ioo ior iov ir- ira irb irc ire iri iro irr irv iva ivb ivc ive ivi ivo ivr ivv o-i oaa oab oac oae oah oai oao oar oav ob- oba obb obc obe obh obi obo obr obv oc- oca ocb occ och oci oco ocr ocv oea oeb oec oee oeh oei oeo oer oha ohc ohe ohh ohi oho ohr oia oib oic oie oii oio oir oiv oo- ooa oob ooc ooh ooi ooo oor oov or- ora orb orc ore orh ori oro orr orv ov- ova ovb ovc ove ovh ovi ovo ovv ra- raa rab rac rae rah rai rao rar rav rba rbb rbc rbe rbh rbi rbo rbr rca rcb rcc rce rch rci rco rcr rcv re- rea reb rec ree reh rei reo rer rev rh- rha rhb rhc rhe rhh rhi rho rhr rhv ria rib ric rie rih rii rio rir riv roa rob roc roe roh roi roo ror rov rra rrb rrc rrh rri rrr rva rvb rvc rve rvh rvi rvo rvr rvv v-a v-e vaa vab vac vae vah vai vao var vav vba vbc vbh vbi vbo vbr vbv vca vcc vce vch vci vco vcr vea veb vec vee veh vei veo ver vh- vha vhb vhc vhe vhi vho vi- via vib vic vie vii vio vir viv voa vob voc voe voh voi voo vor vov vra vrb vrc vre vrh vri vrr vva vvb vvc vvi vvo vvr vvv