-al -ol a-a a-c a-t aaa aac aal aao aap aar aat ac- aca acc acl aco acp acr act al- ala alc all alo alp alr alt aoa aoc aol aoo aop aor aot ap- apa apc apl apo app apr apt ar- ara arc arl aro arp arr art at- ata atc atl ato atp atr att c-- caa cac cal cao cap car cat cca ccc ccl cco ccp ccr cct cl- cla clc cll clo clp clr clt co- coa coc col coo cop cor cot cpa cpc cpl cpo cpp cpr cpt cra crc crl cro crp crr crt cta ctc ctl cto ctp ctr ctt l-p la- laa lac lal lao lap lar lat lca lcc lcl lco lcp lcr lct lla llc lll llo llp llr llt loa loc lol loo lop lor lot lpa lpc lpl lpo lpp lpr lpt lra lrc lro lrp lrr lrt lta ltc ltl lto ltp ltr ltt oaa oac oal oao oap oar oat oc- oca occ ocl oco ocp ocr oct ola olc oll olo olp olt oo- ooa ooc ool ooo oop oor oot op- opa opc opl opo opp opr opt or- ora orc orl oro orp orr ort ot- ota otc otl oto otp otr ott p-p paa pac pal pao pap par pat pca pcc pcl pco pcp pcr pct pla plc pll plo plp plr plt poa poc pol poo pop por pot ppa ppc ppl ppo ppp ppr ppt pra prc prl pro prp prr prt pt- pta ptc ptl pto ptp ptr ptt ra- raa rac ral rao rap rar rat rca rcc rcl rco rcp rcr rct rla rlc rll rlo rlp rlr rlt roa roc rol roo rop ror rot rpa rpc rpl rpo rpp rpr rpt rra rrc rrl rrp rrr rrt rta rtc rtl rto rtp rtr rtt taa tac tal tao tap tar tat tca tcc tcl tco tcp tcr tct tla tlc tll tlo tlp tlr tlt to- toa toc tol too top tor tot tpa tpc tpl tpo tpp tpr tpt tra trc trl tro trp trr trt tta ttc ttl tto ttp ttr ttt