Forum:Naturial barkion

i have a naturial barkion and a gemini monster on my field.. and i have only 3 cards in my graveyard.. my opponent has 2 trap cards : compulsory and dimensional prison..

he activated compusory first, i negated it by banishing 2 cards from grave.. now i only have 1 card in the grave..

in the battle phase i attacked with naturial, he responed by activating dimensional prison.. i chained it by activating gemini spark.. i paid my cost by tributing a gemini monster and there are 2 cards in the grave.. can i chained it again by naturial eff for negating dimensional prison?!