-er a-a a-c aaa aac aae aaj aar aav ac- aca acc ace acj acr acv aea aec aee aej aer aev aja ajc aje ajj ajr ar- ara arc are arj arr arv av- ava avc ave avr c-- c-j caa cac cae caj car cav cca ccc cce ccj ccr ccv ce- cea cec cee cej cer cev cja cjc cjr cra crc cre crj crr crv cva cvc cve cvr cvv eaa eac eae eaj ear eav ec- eca ecc ece ecj ecr ecv eea eec eee eer eev eja ejc era erc ere err erv eva evc eve evr evv jaa jac jae jaj jar jav jca jcc jce jcr jea jec jee jej jer jja jjc jjj jjr jra jrc jrr jvc ra- raa rac rae raj rar rav rca rcc rce rcj rcr rcv re- rea rec ree rer rev rja rjc rjr rra rrc rrr rva rvc rve rvr rvv v-a v-e vaa vac vae vaj var vav vca vcc vce vcr vea vec vee ver vja vra vrc vre vrr vva vvc vvr vvv