iiii iiis iiit iirs iisi iisr iist iitr iitt ilir ilis ilit ill- illi ills illt ilts iri- iril iris irri irrs irti irts isil isis isit isls isri issi issr isss isti istr ists itil itis itll itri itrs itsi liii liir liis lili lill lils lilt liri lirl lirr lirs lirt lisi liss list liti litl litr lits litt llll lrrr lrst lrts ls-r lssr lsts ltrs ltsi ltsr lttr riis rill riri rirs risi riss rist riti ritl rits ritt rlls rrrr rsis rssl rsts rtls rtlt rtss rtts s-ii siit sil- sili sill sils silt siri sirr sirs sirt sisi siss sist sit- siti sits sitt sl-i slir slit slrs slst slts sris srtr ssis ssit sslt ssri ssrl ssrs sssi ssss sstl ssts stil stir stis stit stlt stri strs stsi stss sttr tiit till tilr tils tilt tiri tirl tirr tirs tisi tiss tist titi tits titt tlli tlrs tri- tril tris trit trsi trst trtr tsis tssi tssr tsst tsts ttss tttt