ballad[11],
blada[9], dalba[9],
dalb[8], bada[7], alba[7], bala[7], laba[7], alda[6], dala[6], lada[6], alla[6], lala[6],
bad[6], dba[6], alb[6], bal[6], lab[6], ald[5], dal[5], dla[5], lad[5], lal[5], ala[4], aaa[3],
ba[4], ad[3], da[3], al[3], la[3], aa[2],
