( ( ( Another example ) ( of ( thermal radiation ) ) ) ( ( is ( ( the heat ) ( that ( ( comes ( from ( the Sun ) ) ) ( to ( the Earth ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Another) (NN example)) (PP (IN of) (NP (JJ thermal) (NN radiation)))) (VP (VBZ is) (NP (NP (DT the) (NN heat)) (SBAR (WHNP (WDT that)) (S (VP (VBZ comes) (PP (IN from) (NP (DT the) (NNP Sun))) (PP (TO to) (NP (DT the) (NN Earth)))))))) (. .)))
Another example of thermal radiation is the heat that comes from the Sun to the Earth.
(ROOT (S (NP (NNP Heat)) (VP (VBZ travels) (PP (IN from) (NP (DT the) (NN sun))) (PP (TO to) (NP (NP (DT the) (NN earth) (JJ thermal) (NN radiation)) (PP (IN from) (NP (DT the) (NN sun)))))) (. .)))