loda lofa loff loft lola lold loll lolo loob looc lood loof lool loot lota lotd lotl loto lott loud loul lout louu ltac ltbf ltbl ltcc ltfc lttc ltuc luau luba luca luda ludd ludo luff luft lufu lula lull lulu luta luua oaau oafc oafo oall obad obal obba obbo obdt obla oblu obol obot obtd ocab ocac ocad ocal ocat ocbc occa occc occt ocfa oclc oct- octa octo ocul odac odal odbo odda oddd odla odoo odot odou odtu ofcl off- offa offc offo offu ofla ofta olac olaf olat olba olbo olca olcc oldb olfa olla ollo olof olot olta oltu ooaa ooba ooda ooff oola oold oolo oooo ootb otac otbd otcd otcl otfc oto- otof otoo otta otto ottu ouac ouad ouat oucc oudc oufc ouff oula ould oulu out- outa outb outo ouu- taa- taaf taal taat taba tabb tabc tabl tabo tabu taca tacc tacl taco tact tada tado tafa tafc taff tafo taft tala talc tall talo talu taoa taou tata tatb tato tatt tatu taua taub tauc taul taut tbaf tbca tbcb tbcc tbcd tbta tcad tcca tccc tccu tcdd tcfc tctc tcul tdac tdal tddb tdff tfal tfca tfcu tfdc tfot tftc tlac tlco toab toad toal toat toau toba tobo tobt tobu toca toco toda todd todo todt todu tofa toff tofo toft tofu tol- tola told toll tolo tolt tolu tooa tood toof tool toot tota totc totd toto tott toul tout ttab ttbb ttfa ttfc ttff tttt ttul tual tuao tuat tuba tubb tubo tubu tuca tucc tuco tudu tufa tufc tuff tufo tuft tufu tula tull tulo tulu tuta tutl tuto tutt tutu tuuo uabc uaca uafa uald uaoc uata uatu uaua ubac ubal ubba ubbo ubla ublo uboc ubod ubtf ubud ucad ucal ucat ucbc ucca ucdc ucdd ucfa ucfb ucla ucua ucut udaa udad udal udau udbc udca udoo udot ufcu uffa ulaa ulad ulbc ulcc ulco ulft ulla ullo ulo- uloc ulta ulto ultt ulua ulul uocc uofa uofl uofo uolc utac utal utau utfo utto uttu uulu uuoc uuta uutf uuuu