-ol bbb bbd bbi bbl bbo bbr bbt bdb bdd bdi bdl bdo bdr bdt bi- bib bid bii bil bio bir bit blb bld bli bll blo blr blt bob bod boi bol boo bor bot brb brd bri brl bro brr brt btb btd bti btl bto btr btt dbb dbd dbi dbl dbo dbr dbt ddb ddd ddi ddl ddo ddr ddt di- dib did dii dil dio dir dit dl- dlb dld dli dll dlo dlr dlt dob dod doi dol doo dor dot drb drd dri drl dro drr drt dtb dtd dti dtl dto dtr dtt i-d ibb ibd ibi ibl ibo ibr ibt idb idd idi idl ido idr idt iib iid iii iil iio iir iit il- ilb ild ili ill ilo ilr ilt io- iob iod ioi iol ioo ior iot ir- irb ird iri irl iro irr irt itb itd iti itl ito itt lbb lbd lbi lbl lbo lbr lbt ldb ldd ldi ldl ldo ldr ldt lib lid lii lil lio lir lit llb lld lli lll llo llr llt lob lod loi lol loo lor lot lrb lrd lri lro lrr lrt ltb ltd lti ltl lto ltr ltt o-i ob- obb obd obi obl obo obr obt odb odd odi odl odo odr odt oib oid oii oil oio oir oit olb old oli oll olo olt oo- oob ood ooi ool ooo oor oot or- orb ord ori orl oro orr ort ot- otb otd oti otl oto otr ott rbb rbd rbi rbl rbo rbr rbt rdb rdd rdi rdl rdo rdr rdt rib rid rii ril rio rir rit rld rli rll rlo rlr rlt rob rod roi rol roo ror rot rrb rrd rri rrl rrr rrt rtb rtd rti rtl rto rtr rtt tbb tbd tbi tbl tbo tbr tbt tdb tdd tdi tdl tdo tdr tdt tib tid tii til tio tir tit tld tli tll tlo tlr tlt to- tob tod toi tol too tor tot trb trd tri trl tro trr trt ttb ttd tti ttl tto ttr ttt