TOPIARIUS

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air ais ait apo apt ars art asp its oar oat ops opt ora ors ort our out par pas pat pia pis pit piu poi pot pro psi pst pur pus put rai rap ras rat ria rip rot rut sap sat sau sip sir sit sop sot sou spa sri sup tao tap tar tas tau tip tis top tor tui tup upo ups urp uta uts

airs airt aits apos arts atop auto iota iris oars oast oats opts opus orts osar ours oust outs pair pars part past pats pias piso pita pits pois port post pots pour pout prao prat prau proa pros ptui puri purs puts rais raps rapt rasp rato rats rias riot rips rota roti rots roup rout rust ruts sari sati soap soar sora sori sort soup sour spar spat spit spot spur star stir stoa stop suit sura taos taps taro tarp tars taus tipi tips tiro topi tops tora tori tors tour trap trio trip trop tsar tuis tups upas urps ursa utas