( Snakes ( ( can ( be ( found ( on ( ( every continent ) ( except Antarctica ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Snakes)) (VP (MD can) (VP (VB be) (VP (VBN found) (PP (IN on) (NP (NP (DT every) (NN continent)) (PP (IN except) (NP (NNP Antarctica)))))))) (. .)))
Snakes  can be found on every continent except Antarctica.
(ROOT (S (NP (NNS Bees)) (VP (VBP are) (VP (VBG naturalized) (PP (IN on) (NP (NP (DT every) (NN continent)) (PP (IN except) (NP (NN antarctica))))))) (. .)))