( ( Acute leukemia ) ( ( is ( ( the ( ( most common ) form ) ) ( of ( cancer ( in children ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Acute) (NN leukemia)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN form)) (PP (IN of) (NP (NP (NN cancer)) (PP (IN in) (NP (NNS children))))))) (. .)))
Acute leukemia is the most common form of cancer in children.
(ROOT (S (NP (NNP Leukemia)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN type)) (PP (IN of) (NP (NP (NN cancer)) (VP (VBN developed) (PP (IN in) (NP (NNS children)))))))) (. .)))