holm[8], bohr[8], brom[7], romb[7], smol[6], mors[5], srom[5],
bol[6], lob[6], hol[6], bom[6], mob[6], mho[6], ohm[6], mol[5], bor[5], rob[5], hor[5], rho[5], lor[4], rol[4], mor[4], los[4], ols[4], sol[4], osm[4], som[4], ros[3],
hm[5], bo[4], ho[4], oh[4], om[3], or[2], ro[2], os[2],
