-al a-a a-b a-i aaa aab aad aai aal aap aar ab- aba abb abd abi abl abp abr ad- ada adb add adi adl adp adr ai- aia aib aid aii ail aip air al- ala alb ald ali all alp alr ap- apa apb apd api apl app apr ar- ara arb ard ari arl arp arr b-p baa bab bad bai bal bap bar bba bbb bbd bbi bbl bbp bbr bda bdb bdd bdi bdl bdp bdr bi- bia bib bid bii bil bip bir bla blb bld bli bll blp blr bpa bpb bpd bpi bpl bpp bpr bra brb brd bri brl brp brr daa dab dad dai dal dap dar dba dbb dbd dbi dbl dbp dbr dda ddb ddd ddi ddl ddp ddr di- dia dib did dii dil dip dir dl- dla dlb dld dli dll dlp dlr dpa dpb dpd dpi dpl dpp dpr dra drb drd dri drl drp drr i-d ia- iaa iab iad iai ial iap iar iba ibb ibd ibi ibl ibp ibr ida idb idd idi idl idp idr iia iib iid iii iil iip iir il- ila ilb ild ili ill ilp ilr ipa ipb ipd ipi ipl ipp ipr ir- ira irb ird iri irl irp irr l-p la- laa lab lad lai lal lap lar lba lbb lbd lbi lbl lbp lbr lda ldb ldd ldi ldl ldp ldr lia lib lid lii lil lip lir lla llb lld lli lll llp llr lpa lpb lpd lpi lpl lpp lpr lra lrb lrd lri lrp lrr p-p paa pab pad pai pal pap par pba pbb pbd pbi pbl pbp pbr pda pdb pdd pdi pdl pdp pdr pia pib pid pii pil pip pir pla plb pld pli pll plp plr ppa ppb ppd ppi ppl ppp ppr pra prb prd pri prl prp prr ra- raa rab rad rai ral rap rar rba rbb rbd rbi rbl rbp rbr rda rdb rdd rdi rdl rdp rdr ria rib rid rii ril rip rir rla rld rli rll rlp rlr rpa rpb rpd rpi rpl rpp rpr rra rrb rrd rri rrl rrp rrr