iiii iiis iirs iisi iisr iisu iri- iris iriy irri irrs irus isis isri issi issr isss issu issy isuq isus isys iuiu iuss qiru qisi qqqq qrss qsqs qsrs quir quis quri quu- quy- quyi riis riqq riri rirs risi riss risu rius rrrr rsis ruis ruri rurs ruru rusi russ rusu rusy ruyi ruys ryis rysy s-ii siri sirr sirs siru sisi siss sisu sisy siui sius siyi siyu sris ssis ssri ssrs sssi ssss suir suis suqs sur- suri surr surs suru sury sus- susi suss susu susy suus suyi suyr suyu syis syrs syry syss uirr uris uriu urri urry ursi urss ursu ursy uruq urur urus usis ussr usss ussu ussy usui usus uuri uusi uuuu uyir yirr yiss ysii yssu yuri yury yuyu yyyy