-ly -ol b-u bbb bbl bbo bbr bbu bbx bby blb bll blo blr blu blx bly bob bol boo bor bou box boy brb brl bro brr bru brx bry bub bul buo bur buu bux buy bxb bxl bxo bxx by- byl byo byr byu lbb lbl lbo lbr lbu lbx llb lll llo llr llu lly lob lol loo lor lou lox loy lrb lro lrr lru lry lub lul luo lur luu lux luy lxo lxr lxx lyl lyo lyr lyx ob- obb obl obo obr obu obx oby olb oll olo olu oly oo- oob ool ooo oor oox or- orb orl oro orr oru orx ory ou- oul ouo our ox- oxb oxo oxx oxy oyl oyo rbb rbl rbo rbr rbu rbx rll rlo rlr rlu rly rob rol roo ror rou rox roy rrb rrl rrr rru rub ruo rur ruu rux ruy rxr ry- ryo ryr ryu ryy ubb ubl ubo ubr ubu ubx uby ulb ull ulo ulr ulu uly uob uol uoo uor uox ur- urb url uro urr uru urx ury uur uuu uxb uxo uxr uxu uyo uyu xbl xbr xbx xlb xlr xoo xor xox xrx xry xul xxl xxo xxx xxy xyl xyr xyy ybl ybr yby yll ylr yly yob yol yoo yor you yox yoy yro yru yul yuo yur yuu yux yuy yxy yyb yyu yyy