(S (S (BASENP (DT The) (JJS greatest) (NN temperature) (NN increase)) (VP (VBD occurred) (PP (IN in) (NP (BASENP (DT the) (JJ high) (NNS latitudes)) (PP (IN of) (BASENP (DT the) (NNP Northern) (NNP Hemisphere))))))) (PERIOD .))