PROVIRUSES

er es is oe oi op or os pe pi re si so up us

err ers ess ire oes ope ops ore ors ose our per pes pie pis piu poi pro psi pur pus rei rep res rev rip roe rue sei ser sip sir sis sop sos sou sri sue sup upo ups urp use vie vis voe

epos eros errs euro ires opes opus ores oses ours over peri perv peso pier pies piso piss pois pore pose pour pros psis pure puri purr purs puss reis repo reps revs ripe rips rise rive roes rope rose roue roup rove ruer rues ruse seis sers sipe sips sire sirs sops sore sori soup sour sous spiv spue spur sris suer sues supe sups sure urps user uses vier vies vise voes