sentence1_binary_parse: ( ( Gprotein ( , ( phosphorylation ( , ( ion ( channels ( , ( second messenger ) ) ) ) ) ) ) ) ( pathways . ) )
sentence1_parse: (ROOT (S (NP (NN Gprotein) (, ,) (NN phosphorylation) (, ,) (NN ion) (NNS channels) (, ,) (JJ second) (NN messenger)) (VP (VBZ pathways)) (. .)))
sentence1: Gprotein, phosphorylation, ion channels, second messenger pathways.
sentence2_parse: (ROOT (S (NP (NNP Calcium) (NNP ion)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ second) (NN messenger))))) (. .)))
sentence2: Calcium ion is an example of a second messenger.