-ol b-p bbb bbd bbi bbl bbo bbp bbr bdb bdd bdi bdl bdo bdp bdr bi- bib bid bii bil bio bip bir blb bld bli bll blo blp blr bob bod boi bol boo bop bor bpb bpd bpi bpl bpo bpp bpr brb brd bri brl bro brp brr dbb dbd dbi dbl dbo dbp dbr ddb ddd ddi ddl ddo ddp ddr di- dib did dii dil dio dip dir dl- dlb dld dli dll dlo dlp dlr dob dod doi dol doo dop dor dpb dpd dpi dpl dpo dpp dpr drb drd dri drl dro drp drr i-d ibb ibd ibi ibl ibo ibp ibr idb idd idi idl ido idp idr iib iid iii iil iio iip iir il- ilb ild ili ill ilo ilp ilr io- iob iod ioi iol ioo iop ior ipb ipd ipi ipl ipo ipp ipr ir- irb ird iri irl iro irp irr l-p lbb lbd lbi lbl lbo lbp lbr ldb ldd ldi ldl ldo ldp ldr lib lid lii lil lio lip lir llb lld lli lll llo llp llr lob lod loi lol loo lop lor lpb lpd lpi lpl lpo lpp lpr lrb lrd lri lro lrp lrr o-i ob- obb obd obi obl obo obp obr odb odd odi odl odo odp odr oib oid oii oil oio oip oir olb old oli oll olo olp oo- oob ood ooi ool ooo oop oor op- opb opd opi opl opo opp opr or- orb ord ori orl oro orp orr p-p pbb pbd pbi pbl pbo pbp pbr pdb pdd pdi pdl pdo pdp pdr pib pid pii pil pio pip pir plb pld pli pll plo plp plr pob pod poi pol poo pop por ppb ppd ppi ppl ppo ppp ppr prb prd pri prl pro prp prr rbb rbd rbi rbl rbo rbp rbr rdb rdd rdi rdl rdo rdp rdr rib rid rii ril rio rip rir rld rli rll rlo rlp rlr rob rod roi rol roo rop ror rpb rpd rpi rpl rpo rpp rpr rrb rrd rri rrl rrp rrr