mtt o-i oaa oab oac oae oaf oai oal oam oao oap oat ob- oba obb obc obe obf obi obl obm obo obp obt oc- oca ocb occ ocf oci ocl ocm oco ocp oct oea oeb oec oee oef oei oel oem oeo oep oet of- ofa ofb ofc ofe off ofi ofl ofm ofo ofp oft oia oib oic oie oif oii oil oim oio oip oit ola olb olc ole olf oli oll olm olo olp olt om- oma omb omc ome omf omi oml omm omo omp omt oo- ooa oob ooc oof ooi ool oom ooo oop oot op- opa opb opc ope opf opi opl opm opo opp opt ot- ota otb otc ote otf oti otl otm oto otp ott p-p paa pab pac pae paf pai pal pam pao pap pat pba pbb pbc pbe pbf pbi pbl pbm pbo pbp pbt pca pcb pcc pce pcf pci pcl pcm pco pcp pct pea peb pec pee pef pei pel pem peo pep pet pfa pfb pfc pfe pff pfi pfl pfm pfo pfp pft pia pib pic pie pif pii pil pim pio pip pit pla plb plc ple plf pli pll plm plo plp plt pma pmb pmc pme pmf pmi pml pmm pmo pmp pmt poa pob poc poe pof poi pol pom poo pop pot ppa ppb ppc ppe ppf ppi ppl ppm ppo ppp ppt pt- pta ptb ptc pte ptf pti ptl ptm pto ptp ptt taa tab tac tae taf tai tal tam tao tap tat tba tbb tbc tbe tbf tbi tbl tbm tbo tbp tbt tca tcb tcc tce tcf tci tcl tcm tco tcp tct te- tea teb tec tee tef tei tel tem teo tep tet tfa tfb tfc tfe tff tfi tfl tfm tfo tfp tft tia tib tic tie tif tii til tim tio tip tit tla tlc tle tlf tli tll tlm tlo tlp tlt tma tmb tmc tme tmf tmi tml tmm tmo tmp tmt to- toa tob toc toe tof toi tol tom too top tot tpa tpb tpc tpe tpf tpi tpl tpm tpo tpp tpt tta ttb ttc tte ttf tti ttl ttm tto ttp ttt