echo[7], heco[7], cher[7], herc[7], chor[7], ochr[7], hero[6], cero[5], orce[5],
che[6], ech[6], hec[6], hoc[6], och[6], her[5], hor[5], rho[5], cer[4], ero[3],
eh[4], he[4], ho[4], oh[4], ce[3], co[3], eo[2], er[2], re[2], or[2], ro[2],
