nitrit[6],
intis[5], sinti[5], sitin[5], stirn[5], stint[5], ritts[5], trist[5],
irin[4], iris[4], inti[4], nist[4], rist[4], ritt[4],
ins[3], sir[3], ist[3],
in[2], si[2], ti[2], st[2],