PERTURBATION

ab ae ai an ar at ba be bi bo en er et in it na ne no nu oe oi on op or pa pe pi re ta ti to un up ut

abo ain air ait ane ani ant ape apo apt arb are art ate att ban bap bar bat ben bet bin bio bit boa bop bot bra bro brr bun bur but ear eat eau eon era ern err eta ion ire nab nae nap neb net nib nip nit nob nor not nub nut oar oat oba obe obi one ope opt ora orb ore ort our out pan par pat pea pen per pet pia pie pin pit piu poi pot pro pub pun pur put rai ran rap rat reb rei rep ret ria rib rin rip rob roe rot rub rue run rut tab tae tan tao tap tar tat tau tea ten tet tie tin tip tit toe ton top tor tot tub tui tun tup tut upo urb urn urp uta ute

abet abri abut aeon aero airn airt ante anti aper atop aunt auto bait bane bani bare barn bate batt bean bear beat beau bent beta bier bine bint biro birr bite bitt boar boat bone bora bore born bort bota bott bout brae bran brat bren brie brin brio brit brut buna bunt bura burn burp burr bute butt earn ebon etna etui euro inro into iota iron nabe naoi nape neap near neat nett nipa nite noir nope nori nota note obia obit open orra pain pair pane pant pare parr part pate pean pear peat pein pent peon peri pert pian pier pina pine pint pion pirn pita poet pone pore porn port pour pout prao prat prau proa ptui puna punt pure puri purr putt rain rani rant rape rapt rare rate rato reap rear rein rent repo riot ripe rite roan roar robe rope rota rote roti roue roup rout rube ruer ruin rune runt tabu tain tape tare tarn taro tarp tart tate taut tear teat tent tepa tern tier tine tint tire tiro toea toit tone tope topi tora tore tori torn torr tort tote tour tout trap tret trio trip trop trot true tuba tube tuna tune turn unai unbe unit unto upon urea