( ( ( thermal ( energy transfer ) ) ( conduction ( convection radiation ) ) ) internal )
(ROOT (NP (NP (JJ thermal) (NN energy) (NN transfer)) (NP (NN conduction) (NN convection) (NN radiation)) (NP (JJ internal))))
thermal energy transfer conduction convection radiation internal
(ROOT (S (NP (NNP Conduction)) (VP (VBZ is) (NP (NP (DT the) (NN transfer)) (PP (IN of) (NP (NP (JJ thermal) (NN energy)) (PP (IN between) (NP (NP (NNS particles)) (PP (IN of) (NP (NN matter))))))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBG touching) (S (VP (VBN called))))))))) (. .)))