h-ii hhhh hhhs hhip hihi hiis hipp hips hiri hirs hish hiss hphs hpps hpss hrhs hrip hrpp hrps hshs hsps hssp ihis ihss iiii iiis iirs iisi iisp iisr iphr ippr ipri ipsi ipsp ipss irhs iri- irip iris irps irri irrs irsp ishi ishr ishs isis ispr isps isri isrp issh issi issp issr isss phhs phi- phip phis phrr phrs piip pipi pipp pips piri pirr pirs pish pisi piss pphi pphs ppih pppp ppps ppsh ppss prhs pri- prii pris prps prri prrs prsi prss pshs psip psis psph pspi pspp pspr psps psrp rhhs rihs riis ripi ripp ripr rips riri rirs rish risi risp riss rphs rpii rpps rrhs rrrr rrsp rshs rsis rsps s-ii shhh shhs shih shii ship shir shis shps shri shrp shrs sihi sihr sihs sipi sipp sips siri sirp sirr sirs sish sisi siss sphr sphs spip spir spis spps spri sprs spsp spss srhs sris srps srsp sshs ssis ssps ssri ssrs sssh sssi ssss