PROUNIONIST

in is it no nu oi on op or os pi si so ti to un up us ut

inn ins ion its nip nit noo nor nos not nun nus nut ono ons oot ops opt ors ort our out pin pis pit piu poi poo pot pro psi pst pun pur pus put rin rip rot run rut sin sip sir sit son sop sot sou sri sun sup tin tip tis ton too top tor tui tun tup uns upo ups urn urp uts

inns inro inti into ions iris iron nips nisi nits noir noon nori noun nous nuns nuts onos onto onus oops oots opts opus orts ours oust outs pins pint pion pirn piso pits pois pons poon poor poos porn port post pots pour pout pros ptui puns punt puri purs puts rins riot rips root roti roto rots roup rout ruin runs runt rust ruts snip snit snot soon soot sori sorn sort soup sour spin spit spot spun spur stir stop stun suit sunn tins tipi tips tiro tons toon topi topo tops tori torn toro tors tour trio trip trop tuis tuns tups turn unit unto upon urns urps