( Antarctica ( ( is ( ( the ( only continent ) ) ( in ( ( the world ) ( that ( has ( no pumpkins ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Antarctica)) (VP (VBZ is) (NP (NP (DT the) (JJ only) (NN continent)) (PP (IN in) (NP (NP (DT the) (NN world)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (DT no) (NNS pumpkins))))))))) (. .)))
Antarctica is the only continent in the world that has no pumpkins.
(ROOT (S (NP (NNP Antarctica)) (VP (VBZ is) (NP (NP (DT the) (JJ only) (NN continent)) (PP (IN without) (NP (NNS amphibians))))) (. .)))