-al -ol a-a a-b aaa aab aah aal aan aao aap aar ab- aba abb abh abl abn abo abp abr aha ahb ahh ahl ahn aho ahp ahr al- ala alb alh all aln alo alp alr an- ana anb anh anl ann ano anp anr aoa aob aoh aol aon aoo aop aor ap- apa apb aph apl apn apo app apr ar- ara arb arh arl arn aro arp arr b-p baa bab bah bal ban bao bap bar bba bbb bbh bbl bbn bbo bbp bbr bha bhb bhh bhl bho bhp bhr bla blb blh bll bln blo blp blr bna bnb bnl bnn bno bnp bnr boa bob boh bol bon boo bop bor bpa bpb bph bpl bpn bpo bpp bpr bra brb brh brl brn bro brp brr haa hab hah hal han hao hap har hba hbb hbh hbl hbn hbo hbp hbr hha hhb hhh hhl hhn hho hhp hhr hla hlb hlh hll hln hlo hlp hlr hna hnb hnh hnl hnn hno hoa hob hoh hol hon hoo hop hor hpa hpb hph hpl hpn hpo hpp hpr hr- hra hrb hrh hrl hrn hro hrp hrr l-p la- laa lab lah lal lan lao lap lar lba lbb lbh lbl lbo lbp lbr lha lhb lhh lho lhp lhr lla llb lll lln llo llp llr lna lnb lnh lnl lnn lno lnp lnr loa lob loh lol lon loo lop lor lpa lpb lph lpl lpn lpo lpp lpr lra lrb lrh lrn lro lrp lrr naa nab nah nal nan nao nap nar nba nbb nbl nbn nbo nbp nbr nha nhb nhh nhl nhn nhp nhr nla nlb nlh nll nln nlo nlp nlr nna nnb nnh nnl nnn nno nnp no- noa nob noh nol non noo nop nor npa npb nph npl npn npo npp npr nra nrb nrl nrn nro nrp nrr oaa oab oah oal oan oao oap oar ob- oba obb obh obl obn obo obp obr oha ohh ohl ohn oho ohp ohr ola olb oll oln olo olp on- ona onb onh onl onn ono onp onr oo- ooa oob ooh ool oon ooo oop oor op- opa opb oph opl opn opo opp opr or- ora orb orh orl orn oro orp orr p-p paa pab pah pal pan pao pap par pba pbb pbl pbn pbo pbp pbr pha phb phl phn pho php phr pla plb plh pll pln plo plp plr pn- pna pnb pnh pnl pnn pno pnp pnr poa pob poh pol pon poo pop por ppa ppb pph ppl ppn ppo ppp ppr pra prb prh prl prn pro prp prr ra- raa rab rah ral ran rao rap rar rba rbb rbh rbl rbn rbo rbp rbr rh- rha rhb rhh rhl rhn rho rhp rhr rla rlh rll rln rlo rlp rlr rna rnb rnh rnn rno rnp rnr roa rob roh rol ron roo rop ror rpa rpb rph rpl rpn rpo rpp rpr rra rrb rrh rrl rrn rrp rrr