SORPTION

in is it no oi on op or os pi si so ti to

ins ion its nip nit noo nor nos not ono ons oot ops opt ors ort pin pis pit poi poo pot pro psi pst rin rip rot sin sip sir sit son sop sot sri tin tip tis ton too top tor

inro into ions iron nips nits noir nori onos onto oops oots opts orts pins pint pion pirn piso pits pois pons poon poor poos porn port post pots pros rins riot rips root roti roto rots snip snit snot soon soot sori sorn sort spin spit spot stir stop tins tips tiro tons toon topi topo tops tori torn toro tors trio trip trop