sentence1_binary_parse: ( ( Forms ( of energy ) ) ( ( include ( heat heat ) ) , ) )
sentence1_parse: (ROOT (S (NP (NP (NNS Forms)) (PP (IN of) (NP (NN energy)))) (VP (VBP include) (NP (NN heat) (NN heat))) (, ,)))
sentence1: Forms of energy include heat heat,
sentence2_parse: (ROOT (S (NP (NNP Heat)) (VP (VBZ is) (VP (VBN produced) (SBAR (WHADVP (WRB when)) (S (NP (NN paper)) (VP (VBZ is) (VP (VBN burned))))))) (. .)))
sentence2: Heat is produced when paper is burned.