a-ii a-iv aaaa aaaf aaai aaap aaar aaav aafa aaff aafi aaii aapa aapi aara aari aarp aava afaa afap afar affa affi afia afif afir afpa afr- afra afri aiai aiff aifv aiia aiir aipa aipf aipi aira airi airp aiva apai apap apar apfa api- apia apip appa appr apra apri araf arai arap arar arfa arff aria arif arii arip arpa arpi arr- arra arri arrr arva arvi avar avia avip aviv avra avri avva faaa faap fafa faff fafi fair fapa fapp fara farp farr fava favi ffar ffff ffii ffrr fiaa fiaf fiap fiar fifa fiff fifi fiii fipa fipp fira fpaa fpra fprf fr-v frap fria frip iaaa iaai iaap iaff iafp iaia iapa iapf iapp iara iava ifaa ifar ifpa ifra ifrf ifri ifva iifa iiii iipa iipf iira ipaf ippa ippf ippr ipri iraf irai irap irar iri- iria irip irpa irra irri ivai ivar paap paar pafa paff paia paip pair papa papi papp papr par- para parf pari parp parr parv pava pfaa pfff pffr pfra piaf piai pifa piff piia piip pipa pipi pipp pira piri pirr piva ppap ppar ppfa ppif pppa pppp pprf prai prar pri- pria prif prii priv prri pvpa raaf rafa raff rafi raia raif raii raip rair rapa rapi rapp rara rarf rari rava ravi riaa riai rifa riff riia riif ripa ripi ripp ripr riri riva rivp rpii rrif rrrr vaar vafa vaia vair vapa vapi vara varf vari varp varr vava viar viff viii vipr vira viri virr viva vivi vrai vrap vrav vria vvvv