OBTRIANGULAR

aa ab ag ai al an ar at ba bi bo go in it la li lo na no nu oi on or ta ti to un ut

aal aba abo aga ago ail ain air ait ala alb alt ana ani ant arb art baa bag bal ban bar bat big bin bio bit boa bog bot bra bro brr bug bun bur but gab gal gan gar gat gib gin git gnu goa gob gor got gul gun gut ion lab lag lar lat lib lin lit lob log lot lug nab nag nib nil nit nob nog nor not nub nut oar oat oba obi oil ora orb ort our out rag rai ran rat ria rib rig rin rob rot rub rug run rut tab tag tan tao tar tau til tin tog ton tor tub tug tui tun urb urn uta

abri abut agar agin agio agon airn airt alan alar alba alga alit alto anal anga anil anoa anta anti aria aril aunt aura auto baal bail bait bang bani barn bint biog birl biro birr blat blin blog blot blur boar boat boil bola bolt bong bora born bort bota bout brag bran brat brig brin brio brit brut buna bung bunt bura burg burl burn burr gain gait gala gaol garb gaun gaur gilt girl girn giro girt glia glib glob glut gnar gnat goal goat gout grab gran grat grin grit grot grub guan guar iglu inro into iota iron lain lair lang lari lati latu liar ling lino lint lion lira litu loan loin long lorn lota loti lour lout luna lung lunt nail nala naoi noil noir nori nota nurl obia obit oral orra raga ragi raia rail rain rang rani rant rato rial ring riot roan roar roil rota roti rotl rout ruga ruin rung runt tabu tail tain tala tali tang tarn taro ting tirl tiro toga toil tola tolu tong tora tori torn torr tour trig trio trog trug tuba tuna tung turn ulan ulna unai unit unto