( Antarctica ( ( ( is ( the ( only continent ) ) ) ( that ( they ( ( wo n't ) ( grow in ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Antarctica)) (VP (VBZ is) (NP (DT the) (JJ only) (NN continent)) (SBAR (IN that) (S (NP (PRP they)) (VP (MD wo) (RB n't) (VP (VB grow) (PRT (RP in))))))) (. .)))
Antarctica is the only continent that they won't grow in.
(ROOT (S (NP (NNP Antarctica)) (VP (VBZ is) (NP (NP (DT the) (JJ only) (NN continent)) (PP (IN without) (NP (NNS amphibians))))) (. .)))