bbbb bbbs bbdd bblb bbls bdii bdls bdsd bibb bibi bibl bibs bidi bids biis bild bili bill bils bis- bisd bisl biss blis blls blss bsbd bsdl bssd dbls dbss dddd ddss dibb dibs didi dids diii diis dili dill dils dis- disd disi diss dlbd dlib dlii dlil dlis dsls dssi ibid ibis ibss idid idil idis idli idls idss iiii iiis iisd iisi ilis ill- illd illi ills isbd isbl isdb isds isil isis isls issi isss lbds ldls libs lidb lidl lids liii liis lilb lili lill lils lisd lisi liss llbs lldb llds llll lsds lsid s-ib s-ii sbbs sbds sbsd sbsi sdds sdib sdls sdsl sdss sibi sibs sidd sidi sids sil- sild sili sill sils sisd sisi siss sl-i slds slib slid ssdd ssid ssis sssb sssi ssss