b-p bbb bbi bbl bbm bbp bbs bi- bib bii bil bim bip bis blb bli bll blm blp bls bmb bmi bml bmm bmp bms bpb bpi bpl bpm bpp bps bsb bsi bsl bsm bsp bss ibb ibi ibl ibm ibp ibs iib iii iil iim iip iis il- ilb ili ill ilm ilp ils im- imb imi iml imm imp ims ipb ipi ipl ipm ipp ips is- isb isi isl ism isp iss l-p lbb lbi lbl lbm lbp lbs lib lii lil lim lip lis llb lli lll llm llp lls lmb lmi lml lmm lmp lms lpb lpi lpl lpm lpp lps lsb lsi lsl lsm lsp lss mbb mbi mbl mbm mbp mbs mi- mib mii mil mim mip mis mlb mli mll mlm mlp mls mmb mmi mml mmm mmp mms mpb mpi mpl mpm mpp mps msb msi msl msm msp mss p-p pbb pbi pbl pbm pbp pbs pib pii pil pim pip pis plb pli pll plm plp pls pmb pmi pml pmm pmp pms ppb ppi ppl ppm ppp pps ps- psb psi psl psm psp pss sbb sbi sbl sbm sbp sbs sib sii sil sim sip sis slb sli sll slm slp sls smb smi sml smm smp sms spb spi spl spm spp sps ss- ssb ssi ssl ssm ssp sss