BOTULINUS

bi bo in is it li lo no nu oi on os si so ti to un us ut

bin bio bis bit bos bot bun bus but ins ion its lib lin lis lit lob lot nib nil nit nob nos not nub nus nut obi oil ons out sib sin sit sob sol son sot sou sub sun til tin tis ton tub tui tun ulu uns uts

bins bint bios bits blin blot boil bolt bots bout buns bunt bust buts into ions libs lino lins lint lion list lits litu lobs loin lost loti lots lout lunt lust nibs nils nits nobs noil nous nubs nuts obis obit oils onus oust outs silo silt slit slob slot slub slut snib snit snob snot snub soil soli soul stob stub stun suit sulu tils tins toil tolu tons tubs tuis tuns ulus unit unto