( 1930 ( ( ( The ( first ( commercial ( greenhouse use ) ) ) ) ( of ( geothermal energy ) ) ) ( ( is ( undertaken ( in ( Boise ( , Idaho ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB 1930)) (NP (NP (DT The) (JJ first) (JJ commercial) (NN greenhouse) (NN use)) (PP (IN of) (NP (JJ geothermal) (NN energy)))) (VP (VBZ is) (VP (VBN undertaken) (PP (IN in) (NP (NNP Boise) (, ,) (NNP Idaho))))) (. .)))
1930 The first commercial greenhouse use of geothermal energy is undertaken in Boise, Idaho.
(ROOT (S (NP (JJ Geothermal) (NN energy) (NN energy)) (VP (VP (VBZ is) (ADJP (JJ clean))) (CC and) (VP (VBZ does) (RB not) (VP (VB release) (NP (NN greenhouse) (NNS gases))))) (. .)))