fulu[13], fusu[12], flus[11], usus[8], suwu[8], usuw[8],
ful[10], luf[10], fus[9], ulu[8], lwu[6], ulw[6], sus[5], suw[5],
fu[8], uf[8], uu[6], lu[5], ul[5], su[4], wu[4],
