iii iim iip iis iiw im- imi imm imp ims imw ipi ipm ipp ips is- isi ism isp iss isw iwi iwm iwp iws iww m-w mi- mii mim mip mis mmi mmm mmp mms mmw mpi mpm mpp mps mpw msi msm msp mss msw mwi mwm mwp mws mww p-p pii pim pip pis piw pmi pmm pmp pms pmw ppi ppm ppp pps ppw ps- psi psm psp pss psw pwi pwp pws sii sim sip sis siw smi smm smp sms smw spi spm spp sps spw ss- ssi ssm ssp sss ssw swi swm swp sws wii wim wip wis wm- wmi wmm wmp wms wpi wpm wpp wps wsi wsm wsp wss wsw wwi wwm wwp www