SUBRAILWAY

aa ab ai al ar as aw ay ba bi by is la li si us ya

aal aas aba abs aby ail air ais ala alb als arb ars awa awl ays baa bal bar bas bay bis bra bur bus buy bys lab lar las law lay lib lis rai ras raw ray ria rib rub rya sab sal sau saw say sib sir sly sri sub urb wab war was way wis wry yar yaw

aals abas ably abri abys ails airs airy alar alas alba albs arbs aria aril aryl aura away awls awry baal baas bail bals bars bawl bays bias birl blaw blur bras braw bray bris bura burl burs bury busy buys byrl isba labs lair lari lars laws lays liar libs lira raia rail rais raws raya rays rial rias ribs rubs ruby ruly ryas sail sari saul sial slab slaw slay slub slur suba sura swab sway syli urbs ursa wabs wail wair waly wars wary waul waur ways wily wiry yawl yaws ywis