-ol b-p bbb bbd bbi bbl bbo bbp bbr bbt bdb bdd bdi bdl bdo bdp bdr bdt bi- bib bid bii bil bio bip bir bit blb bld bli bll blo blp blr blt bob bod boi bol boo bop bor bot bpb bpd bpi bpl bpo bpp bpr bpt brb brd bri brl bro brp brr brt btb btd bti btl bto btp btr btt dbb dbd dbi dbl dbo dbp dbr dbt ddb ddd ddi ddl ddo ddp ddr ddt di- dib did dii dil dio dip dir dit dl- dlb dld dli dll dlo dlp dlr dlt dob dod doi dol doo dop dor dot dpb dpd dpi dpl dpo dpp dpr dpt drb drd dri drl dro drp drr drt dtb dtd dti dtl dto dtp dtr dtt i-d ibb ibd ibi ibl ibo ibp ibr ibt idb idd idi idl ido idp idr idt iib iid iii iil iio iip iir iit il- ilb ild ili ill ilo ilp ilr ilt io- iob iod ioi iol ioo iop ior iot ipb ipd ipi ipl ipo ipp ipr ipt ir- irb ird iri irl iro irp irr irt itb itd iti itl ito itp itt l-p lbb lbd lbi lbl lbo lbp lbr lbt ldb ldd ldi ldl ldo ldp ldr ldt lib lid lii lil lio lip lir lit llb lld lli lll llo llp llr llt lob lod loi lol loo lop lor lot lpb lpd lpi lpl lpo lpp lpr lpt lrb lrd lri lro lrp lrr lrt ltb ltd lti ltl lto ltp ltr ltt o-i ob- obb obd obi obl obo obp obr obt odb odd odi odl odo odp odr odt oib oid oii oil oio oip oir oit olb old oli oll olo olp olt oo- oob ood ooi ool ooo oop oor oot op- opb opd opi opl opo opp opr opt or- orb ord ori orl oro orp orr ort ot- otb otd oti otl oto otp otr ott p-p pbb pbd pbi pbl pbo pbp pbr pbt pdb pdd pdi pdl pdo pdp pdr pdt pib pid pii pil pio pip pir pit plb pld pli pll plo plp plr plt pob pod poi pol poo pop por pot ppb ppd ppi ppl ppo ppp ppr ppt prb prd pri prl pro prp prr prt pt- ptb ptd pti ptl pto ptp ptr ptt rbb rbd rbi rbl rbo rbp rbr rbt rdb rdd rdi rdl rdo rdp rdr rdt rib rid rii ril rio rip rir rit rld rli rll rlo rlp rlr rlt rob rod roi rol roo rop ror rot rpb rpd rpi rpl rpo rpp rpr rpt rrb rrd rri rrl rrp rrr rrt rtb rtd rti rtl rto rtp rtr rtt tbb tbd tbi tbl tbo tbp tbr tbt tdb tdd tdi tdl tdo tdp tdr tdt tib tid tii til tio tip tir tit tld tli tll tlo tlp tlr tlt to- tob tod toi tol too top tor tot tpb tpd tpi tpl tpo tpp tpr tpt trb trd tri trl tro trp trr trt ttb ttd tti ttl tto ttp ttr ttt