cher[7], herc[7], irch[7], egri[6], ergi[6], gier[6], grei[6],
ghi[7], che[6], ech[6], hec[6], chi[6], ich[6], gie[5], erg[5], her[5], gir[5], igr[5], irg[5], cie[4], cer[4], rei[3],
eh[4], he[4], hi[4], ce[3], ci[3], er[2], re[2],