forum[11], furor[9], rumor[8],
boom[10], form[10], brom[9], moor[8], fror[8], murr[6],
mob[8], bum[7], ufo[7], bor[6], rom[6], ruf[6], brr[5], mur[5], rum[5],
ob[5], um[4], ur[2],
