LIGNIVOROUS

go in is li lo no nu oi on or os si so un us

gin gnu goo gor gos gul gun guv ins ion lin lis log loo lug luv nil nog noo nor nos nus oil ono ons ors our rig rin rug run sin sir sol son sou sri sun uns urn vig vis vug

gins girl girn giro gnus goon goos grin guls guns guvs iglu inro ions iris iron ling lino lins lion liri logo logs loin long loon loos lorn lour lugs lung luvs nils nisi nogs noil noir nolo nori nous nurl oils olio onos onus ours rigs ring rins roil rugs ruin rung runs sign silo sing slog slug slur snog snug soil soli solo song soon sori sorn soul sour sung urns vigs vino viol virl vugs