( ( ( The science ) ( of ( wind generation ) ) ) ( ( In ( a ( coal-fired ( power station ) ) ) ) ( , ( ( ( chemical energy ) ( stored ( in coal ) ) ) ( ( is ( ( converted first ) ( to ( ( heat ( energy ( ( ( ( by burning ) and ) then ) ( into ( ( kinetic energy ) ( -LRB- ( ( energy ( of motion ) ) -RRB- ) ) ) ) ) ) ) ( by ( ( heating water ) ( to ( produce steam ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (NP (NP (DT The) (NN science)) (PP (IN of) (NP (NN wind) (NN generation)))) (PP (IN In) (NP (DT a) (JJ coal-fired) (NN power) (NN station))) (, ,) (NP (NP (NN chemical) (NN energy)) (VP (VBN stored) (PP (IN in) (NP (NN coal))))) (VP (VBZ is) (VP (VBN converted) (ADVP (RB first)) (S (VP (TO to) (VP (VB heat) (NP (NP (NN energy)) (PP (PP (IN by) (NP (NN burning))) (CC and) (ADVP (RB then)) (PP (IN into) (NP (NP (JJ kinetic) (NN energy)) (PRN (-LRB- -LRB-) (NP (NP (NN energy)) (PP (IN of) (NP (NN motion)))) (-RRB- -RRB-)))))) (PP (IN by) (S (VP (VBG heating) (NP (NN water)) (S (VP (TO to) (VP (VB produce) (NP (NN steam))))))))))))) (. .)))
The science of wind generation In a coal-fired power station, chemical energy stored in coal is converted first to heat energy by burning and then into kinetic energy (energy of motion) by heating water to produce steam.
(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))))))) (. .)))
Heat is produced when paper is burned.