( ( ( ( ( ( ( potential , ) kinetic ) , ) and ) ( ( thermal energy ) ( all ( ( interact and ) exchange ) ) ) ) ( ( the ( total amount ) ) ( of ( force ( available ( to ( the skater ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NN potential)) (, ,) (NP (NN kinetic)) (, ,) (CC and) (NP (NP (JJ thermal) (NN energy)) (NP (DT all) (NN interact) (CC and) (NN exchange))) (NP (NP (DT the) (JJ total) (NN amount)) (PP (IN of) (NP (NP (NN force)) (ADJP (JJ available) (PP (TO to) (NP (DT the) (NN skater))))))) (. .)))
potential, kinetic, and thermal energy all interact and exchange the total amount of force available to the skater.
(ROOT (S (NP (JJ Thermal) (NN energy)) (VP (VBZ constitutes) (NP (NP (DT the) (JJ total) (JJ kinetic) (NN energy)) (PP (IN of) (NP (PDT all) (DT the) (NNS atoms) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT an) (NN object))))))))) (. .)))