loop[6], polo[6], pool[6], loro[5], rolo[5], poro[5], ropo[5], wolo[5],
lor[4], rol[4], por[4], pro[4], rop[4], prr[4], oro[3], owo[3], rwo[3], wrr[3],
op[3], po[3], or[2], ro[2],
