groll[9],
blog[9], borg[8], grob[8], roll[7], burg[7], grub[7], guru[5],
bog[7], bol[7], lob[7], log[6], oll[6], bor[6], bug[6], gor[5], lug[5], gur[4],
ob[5], go[4], ul[3], ur[2],
