bond[7], boni[7], niob[7], bind[6], dino[5], dion[5],
bio[6], obi[6], bon[6], bin[5], ido[4], iod[4], don[4], ion[4], non[4], nid[3],
ob[5], bi[4], do[3], od[3], on[3], in[2],
