g-p ggg ggi ggp ggs gig gii gik gip gis gkp gks gpg gpi gpk gpp gps gsg gsi gsk gsp gss igg igi igk igp igs iii iip iis iki ikk iks ipg ipi ipp ips is- isg isi isk isp iss kgi kgp kgs kig kii kik kip kis kki kkk kkp kks kpi kpk kpp kps ksg ksi ksk ksp kss p-p pgg pgi pgk pgp pgs pig pii pik pip pis pkg pki pkp pks ppg ppi ppk ppp pps ps- psg psi psk psp pss sgg sgi sgk sgp sgs sig sii sik sip sis sk- skg ski skk skp sks spg spi spk spp sps ss- ssg ssi ssk ssp sss