boss[7], obst[7], stob[7], obus[7], osts[5], sous[5], usos[5], outs[5], sust[4], usus[4],
bot[6], tob[6], bst[5], bus[5], ost[4], tos[4], sou[4], uso[4], out[4],
ob[5], os[3], so[3], st[2], tu[2],
