choi[7], irch[7], chor[7], ochr[7],
hif[9], cif[8], for[7], orf[7], chi[6], ich[6], hoc[6], och[6], hoi[5], hor[5], rho[5], roi[3],
fi[6], hi[4], ho[4], oh[4], ci[3], co[3], or[2], ro[2],
