-ly -ol bbb bbd bbl bbo bbr bbt bby bdb bdd bdl bdo bdr bdt bdy blb bld bll blo blr blt bly bob bod bol boo bor bot boy brb brd brl bro brr brt bry btb btd btl bto btr btt bty by- byd byl byo byr byt dbb dbd dbl dbo dbr dbt dby ddb ddd ddl ddo ddr ddt ddy dl- dlb dld dll dlo dlr dlt dly dob dod dol doo dor dot doy drb drd drl dro drr drt dry dtb dtd dtl dto dtr dtt dty dy- dyb dyd dyo dyr dyy lbb lbd lbl lbo lbr lbt ldb ldd ldl ldo ldr ldt ldy llb lld lll llo llr llt lly lob lod lol loo lor lot loy lrb lrd lro lrr lrt lry ltb ltd ltl lto ltr ltt lyd lyl lyo lyr lyt ob- obb obd obl obo obr obt oby odb odd odl odo odr odt olb old oll olo olt oly oo- oob ood ool ooo oor oot or- orb ord orl oro orr ort ory ot- otb otd otl oto otr ott oyd oyl oyo rbb rbd rbl rbo rbr rbt rdb rdd rdl rdo rdr rdt rdy rld rll rlo rlr rlt rly rob rod rol roo ror rot roy rrb rrd rrl rrr rrt rtb rtd rtl rto rtr rtt rty ry- ryd ryo ryr ryy tbb tbd tbl tbo tbr tbt tdb tdd tdl tdo tdr tdt tdy tld tll tlo tlr tlt to- tob tod tol too tor tot toy trb trd trl tro trr trt try ttb ttd ttl tto ttr ttt tty tyd tyl tyo tyr tyt ybl ybr yby ydl ydo ydt ydy yld yll ylr ylt yly yob yod yol yoo yor yot yoy yro yrt ytd ytl yto ytr ytt yyb yyt yyy