-ol b-p bbb bbi bbl bbn bbo bbp bbt bi- bib bii bil bin bio bip bit blb bli bll bln blo blp blt bnb bni bnl bnn bno bnp bnt bob boi bol bon boo bop bot bpb bpi bpl bpn bpo bpp bpt btb bti btl btn bto btp btt ibb ibi ibl ibn ibo ibp ibt iib iii iil iin iio iip iit il- ilb ili ill iln ilo ilp ilt in- inb ini inl inn ino inp int io- iob ioi iol ion ioo iop iot ipb ipi ipl ipn ipo ipp ipt itb iti itl itn ito itp itt l-p lbb lbi lbl lbo lbp lbt lib lii lil lin lio lip lit llb lli lll lln llo llp llt lnb lni lnl lnn lno lnp lnt lob loi lol lon loo lop lot lpb lpi lpl lpn lpo lpp lpt ltb lti ltl lto ltp ltt n-i nbb nbi nbl nbn nbo nbp nbt nib nii nil nin nio nip nit nlb nli nll nln nlo nlp nlt nnb nni nnl nnn nno nnp nnt no- nob noi nol non noo nop not npb npi npl npn npo npp npt ntb nti ntn nto ntp ntt o-i ob- obb obi obl obn obo obp obt oib oii oil oin oio oip oit olb oli oll oln olo olp olt on- onb oni onl onn ono onp ont oo- oob ooi ool oon ooo oop oot op- opb opi opl opn opo opp opt ot- otb oti otl otn oto otp ott p-p pbb pbi pbl pbn pbo pbp pbt pib pii pil pin pio pip pit plb pli pll pln plo plp plt pn- pnb pni pnl pnn pno pnp pnt pob poi pol pon poo pop pot ppb ppi ppl ppn ppo ppp ppt pt- ptb pti ptl ptn pto ptp ptt tbb tbi tbl tbn tbo tbp tbt tib tii til tin tio tip tit tli tll tln tlo tlp tlt tnb tni tnl tnn tno tnp tnt to- tob toi tol ton too top tot tpb tpi tpl tpn tpo tpp tpt ttb tti ttl ttn tto ttp ttt