RINSIBILITY

bi by in is it li si ti

bin bis bit bys ins its lib lin lis lit nib nil nit rib rin sib sin sir sit sly sri sty syn til tin tis try yin

bins bint birl bits blin brin bris brit byrl ibis inby inly inti iris libs lins lint liny liri list lits nibs nils nisi nits ribs rins silt slit snib snit stir syli tils tins tiny tirl tyin yins