-ol bbb bbd bbi bbl bbo bbr bdb bdd bdi bdl bdo bdr bi- bib bid bii bil bio bir blb bld bli bll blo blr bob bod boi bol boo bor brb brd bri brl bro brr dbb dbd dbi dbl dbo dbr ddb ddd ddi ddl ddo ddr di- dib did dii dil dio dir dl- dlb dld dli dll dlo dlr dob dod doi dol doo dor drb drd dri drl dro drr i-d ibb ibd ibi ibl ibo ibr idb idd idi idl ido idr iib iid iii iil iio iir il- ilb ild ili ill ilo ilr io- iob iod ioi iol ioo ior ir- irb ird iri irl iro irr lbb lbd lbi lbl lbo lbr ldb ldd ldi ldl ldo ldr lib lid lii lil lio lir llb lld lli lll llo llr lob lod loi lol loo lor lrb lrd lri lro lrr o-i ob- obb obd obi obl obo obr odb odd odi odl odo odr oib oid oii oil oio oir olb old oli oll olo oo- oob ood ooi ool ooo oor or- orb ord ori orl oro orr rbb rbd rbi rbl rbo rbr rdb rdd rdi rdl rdo rdr rib rid rii ril rio rir rld rli rll rlo rlr rob rod roi rol roo ror rrb rrd rri rrl rrr