-ey -ly -ol bbb bbe bbl bbo bbs bbx bby be- beb bee bel beo bes bex bey blb ble bll blo bls blx bly bob boe bol boo bos box boy bsb bse bsl bso bss bsx bsy bxb bxl bxo bxx by- bye byl byo bys ebb ebe ebl ebo ebs ebx eby eeb eee eel eeo ees eex eey elb ele ell elo els elx ely eo- eob eoe eol eoo eos es- esb ese esl eso ess esx esy ex- exe exl exo exs exx exy eye eyl eyo eys lbb lbe lbl lbo lbs lbx leb lee lel leo les lex ley llb lle lll llo lls lly lob loe lol loo los lox loy lsb lse lsl lso lss lxo lxx lye lyl lyo lys lyx ob- obb obe obl obo obs obx oby oeb oee oel oeo oes oex oey olb ole oll olo ols oly oo- oob ool ooo oos oox os- osb ose osl oso oss osx ox- oxb oxo oxx oxy oye oyl oyo oys sbb sbe sbl sbo sbs sbx sby se- seb see sel seo ses sex sey slb sle sll slo sls slx sly sob soe sol soo sos sox soy ss- ssb sse ssl sso sss ssx sxl sxs sy- syb sye syl sys syx xbe xbl xbx xee xel xes xex xlb xls xoo xos xox xsb xsl xss xxl xxo xxx xxy xyl xyy ybe ybl ybs yby yeb yee yel yeo yes yex yey yle yll yls yly yob yoe yol yoo yos yox yoy ysb yse ysl yso yss ysy yxe yxy yyb yye yys yyy