SEROTOXIN

en er es et ex in is it ne no oe oi on or os ox re si so ti to xi

ens eon ern ers ins ion ire its net nit nix noo nor nos not oes one ono ons oot ore ors ort ose oxo rei res ret rex rin roe rot sei sen ser set sex sin sir sit six son sot sox sri ten tie tin tis toe ton too tor xis

eons erns eros erst exit exon inro into ions ires iron nest nets next nite nits nixe noes noir nori nose note ones onos onto oots ores orts oxen oxes rein reis rent rest rets rins riot rise rite roes root rose rote roti roto rots sent sext sine sire site snit snot sone soon soot sore sori sorn sort stir tens tern tier ties tine tins tire tiro toes tone tons toon tore tori torn toro tors tres trio