bbbb bbbs bbdd bblb bbls bdii bdls bdsd bibb bibi bibl bibs bidi bids biis bild bili bill bils bily bis- bisd bisl biss bisy biys blis blls blss bly- blys bsbd bsdl bssd byil byld bysb bysi bysl byss bysy byyd dbls dbss dddd ddly ddss dibb dibs diby didi dids didy diii diis dili dill dils dily dis- disd disi diss disy diyi dlbd dlib dlii dlil dlis dsls dssi dydd dyll dys- dysi dyss i-by ibid ibis ibly ibss ibyi idid idil idis idli idls idly idss idyl iiii iiis iisd iisi ilis ill- illd illi ills illy isbd isbl isdb isds isil isis isls isly issi isss issy isyl isys lbds ldls libs lidb lidl lids liii liis lilb lili lill lils lily lisd lisi liss lisy liyl llbs lldb llds llll lsds lsid lydd lyly lys- lysi lysl lyss s-ib s-ii sbbs sbds sbsd sbsi sdds sdib sdls sdsl sdss sibi sibs siby sidd sidi sids sidy sil- sild sili sill sils sisd sisi siss sisy siyi sl-i slds slib slid slys ssby ssdd ssid ssis sssb sssi ssss sydi syds syis syl- syli syll syls syss ybbs ydil yidi yids yild yili yill yiss ylds ylid ylli ylls ysby ysii ysyb yyyy