-al -ol a-a a-b a-t aaa aab aae aal aao aap aat ab- aba abb abe abl abo abp abt aea aeb aee ael aeo aep aet al- ala alb ale all alo alp alt aoa aob aoe aol aoo aop aot ap- apa apb ape apl apo app apt at- ata atb ate atl ato atp att b-p baa bab bae bal bao bap bat bba bbb bbe bbl bbo bbp bbt be- bea beb bee bel beo bep bet bla blb ble bll blo blp blt boa bob boe bol boo bop bot bpa bpb bpe bpl bpo bpp bpt bta btb bte btl bto btp btt eaa eab eae eal eao eap eat eba ebb ebe ebl ebo ebp ebt eea eeb eee eel eeo eep eet ela elb ele ell elo elp elt eo- eoa eob eoe eol eoo eop eot ep- epa epb epe epl epo epp ept eta etb ete etl eto etp ett l-p la- laa lab lae lal lao lap lat lba lbb lbe lbl lbo lbp lbt lea leb lee lel leo lep let lla llb lle lll llo llp llt loa lob loe lol loo lop lot lpa lpb lpe lpl lpo lpp lpt lta ltb lte ltl lto ltp ltt oaa oab oae oal oao oap oat ob- oba obb obe obl obo obp obt oea oeb oee oel oeo oep oet ola olb ole oll olo olp olt oo- ooa oob ool ooo oop oot op- opa opb ope opl opo opp opt ot- ota otb ote otl oto otp ott p-p paa pab pae pal pao pap pat pba pbb pbe pbl pbo pbp pbt pea peb pee pel peo pep pet pla plb ple pll plo plp plt poa pob poe pol poo pop pot ppa ppb ppe ppl ppo ppp ppt pt- pta ptb pte ptl pto ptp ptt taa tab tae tal tao tap tat tba tbb tbe tbl tbo tbp tbt te- tea teb tee tel teo tep tet tla tle tll tlo tlp tlt to- toa tob toe tol too top tot tpa tpb tpe tpl tpo tpp tpt tta ttb tte ttl tto ttp ttt