-ic a-a a-c a-i aaa aac aai aao aar aas aav ac- aca acc aci aco acr acs acv ai- aia aic aii aio air ais aiv aoa aoc aoi aoo aor aos aov ar- ara arc ari aro arr ars arv as- asa asc asi aso asr ass asv av- ava avc avi avo avr avs c-- caa cac cai cao car cas cav cca ccc cci cco ccr ccs ccv ci- cia cic cii cio cir cis civ co- coa coc coi coo cor cos cov cra crc cri cro crr crs crv csa csc csi cso csr css csv cva cvc cvi cvo cvr cvs cvv i-v ia- iaa iac iai iao iar ias iav ica icc ici ico icr ics icv iia iic iii iio iir iis io- ioa ioc ioi ioo ior ios iov ir- ira irc iri iro irr irs irv is- isa isc isi iso isr iss isv iva ivc ivi ivo ivr ivs ivv o-i oaa oac oai oao oar oas oav oc- oca occ oci oco ocr ocs ocv oia oic oii oio oir ois oiv oo- ooa ooc ooi ooo oor oos oov or- ora orc ori oro orr ors orv os- osa osc osi oso osr oss osv ov- ova ovc ovi ovo ovs ovv ra- raa rac rai rao rar ras rav rca rcc rci rco rcr rcs rcv ria ric rii rio rir ris riv roa roc roi roo ror ros rov rra rrc rri rrr rrs rsa rsc rsi rso rsr rss rsv rva rvc rvi rvo rvr rvs rvv saa sac sai sao sar sas sav sca scc sci sco scr scs scv sia sic sii sio sir sis siv soa soc soi soo sor sos sov sr- sra src sri sro srr srs srv ss- ssa ssc ssi sso ssr sss ssv sva svc svi svo svr svs svv v-a vaa vac vai vao var vas vav vca vcc vci vco vcr vcs vi- via vic vii vio vir vis viv voa voc voi voo vor vos vov vra vrc vri vrr vrs vsa vsc vsi vso vsr vss vsv vva vvc vvi vvo vvr vvs vvv