RUBRICIANS

ab ai an ar as ba bi in is na nu si un us

abs ain air ais ani arb arc ars ban bar bas bin bis bra brr bun bur bus cab can car cis cru cub cur ins nab nib nub nus rai ran ras ria rib rin rub run sab sac sau sib sic sin sir sri sub sun uns urb urn

abri ains airn airs anis anus arbs arcs asci bani bans barn bars bias bins birr bran bras brin bris buna buns bura burn burr burs cabs cain cans carb carn carr cars crab crib cris crus cubs curb curn curr curs ibis inia iris isba nabs narc nibs nisi nubs rain rais rani rias ribs rins rubs ruin runs sain sari scab scan scar snib snub suba sura unai unci urbs uric urns ursa