-er a-a aaa aae aao aap aar aaw aea aee aeo aep aer aew aoa aoe aoo aop aor aow ap- apa ape apo app apr apw ar- ara are aro arp arr arw aw- awa awe awo awp awr aww eaa eae eao eap ear eaw eea eee eeo eep eer eew eo- eoa eoe eoo eop eor eow ep- epa epe epo epp epr epw era ere ero erp err erw ewa ewe ewo ewp ewr eww oaa oae oao oap oar oaw oea oee oeo oep oer oo- ooa ooo oop oor oow op- opa ope opo opp opr opw or- ora ore oro orp orr owa owe owo owp oww p-p paa pae pao pap par paw pea pee peo pep per pew poa poe poo pop por pow ppa ppe ppo ppp ppr ppw pra pre pro prp prr prw pwa pwe pwo pwp pwr ra- raa rae rao rap rar raw re- rea ree reo rep rer rew roa roe roo rop ror row rpa rpe rpo rpp rpr rpw rra rrp rrr rwa rwe rwr waa wae wao wap war waw wea wee weo wep wer wew woa woe woo wop wor wow wpa wpe wpo wpp wpr wr- wra wre wro wrp wrr wrw wwa wwe wwo wwp www