hol[6], hop[6], hot[6], hor[5], rho[5], lot[5], pot[5], top[5], lor[4], rol[4], por[4], pro[4], rop[4], not[4], ton[4], ort[4], rot[4], tor[4], nor[3],
ho[4], oh[4], op[3], po[3], ot[3], to[3], no[2], on[2], or[2], ro[2],