bbbb bbbs bbhs bhhs bhir bibb bibi bibs bihi bihs biis birb biri birr birs bis- bish biss brhs brih bris brrr brrs brsb brsr bshs h-ii hbbs hbhs hbrs hbss hhhh hhhs hibi hihi hiis hiri hirs hisb hish hiss hrhs hrib hshs ibis ibri ibss ihis ihss iiii iiis iirs iisi iisr irhs iri- iris irri irrs ishi ishr ishs isis isri issh issi issr isss rbbb rbbr rbbs rbhs rbis rbss rhhs rhib rib- ribs rihs riis riri rirs rish risi riss rrhs rrrr rsbi rshs rsis s-ib s-ii sbbs sbhs sbsi shbs shhh shhs shib shih shii shir shis shri shrs sibi sibs sihi sihr sihs siri sirr sirs sish sisi siss srhs srib sris ssbr sshs ssis ssri ssrs sssb sssh sssi ssss