-al -ol a-a a-b a-t aaa aab aaf aal aao aap aat ab- aba abb abf abl abo abp abt af- afa afb aff afl afo afp aft al- ala alb alf all alo alp alt aoa aob aof aol aoo aop aot ap- apa apb apf apl apo app apt at- ata atb atf atl ato atp att b-p baa bab baf bal bao bap bat bba bbb bbf bbl bbo bbp bbt bfa bfb bff bfl bfo bfp bft bla blb blf bll blo blp blt boa bob bof bol boo bop bot bpa bpb bpf bpl bpo bpp bpt bta btb btf btl bto btp btt faa fab faf fal fao fap fat fba fbb fbf fbl fbo fbp fbt ffa fff ffl ffo ffp fft fla flb flf fll flo flp flt foa fob fof fol foo fop fot fpa fpb fpl fpo fpp fpt fta ftb ftf ftl fto ftp ftt l-p la- laa lab laf lal lao lap lat lba lbb lbf lbl lbo lbp lbt lfa lfb lff lfl lfo lfp lft lla llb llf lll llo llp llt loa lob lof lol loo lop lot lpa lpb lpf lpl lpo lpp lpt lta ltb ltf ltl lto ltp ltt oaa oab oaf oal oao oap oat ob- oba obb obf obl obo obp obt of- ofa ofb off ofl ofo ofp oft ola olb olf oll olo olp olt oo- ooa oob oof ool ooo oop oot op- opa opb opf opl opo opp opt ot- ota otb otf otl oto otp ott p-p paa pab paf pal pao pap pat pba pbb pbf pbl pbo pbp pbt pfa pfb pff pfl pfo pfp pft pla plb plf pll plo plp plt poa pob pof pol poo pop pot ppa ppb ppf ppl ppo ppp ppt pt- pta ptb ptf ptl pto ptp ptt taa tab taf tal tao tap tat tba tbb tbf tbl tbo tbp tbt tfa tfb tff tfl tfo tfp tft tla tlf tll tlo tlp tlt to- toa tob tof tol too top tot tpa tpb tpf tpl tpo tpp tpt tta ttb ttf ttl tto ttp ttt