( ( COROLLA ( The corolla ) ) ( ( consists ( of ( ( the petals ) ( of ( a flower ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP COROLLA)) (NP (DT The) (NN corolla))) (VP (VBZ consists) (PP (IN of) (NP (NP (DT the) (NNS petals)) (PP (IN of) (NP (DT a) (NN flower)))))) (. .)))
COROLLA The corolla consists of the petals of a flower .
(ROOT (S (NP (NP (DT All)) (PP (IN of) (NP (DT the) (NNS petals)))) (ADVP (RB together)) (VP (VBP are) (VP (VBN called) (NP (DT a) (NN corolla)))) (. .)))
All of the petals together are called a corolla.