( Functions ( of ( Red ( Blood Cells ) ) ) )
(ROOT (NP (NP (NNS Functions)) (PP (IN of) (NP (NNP Red) (NNP Blood) (NNP Cells)))))
Functions of Red Blood Cells
(ROOT (S (NP (NNP Red) (NN blood) (NNS cells)) (VP (VBP are) (NP (DT the) (RBS most) (JJ numerous) (NN blood) (NNS cells))) (. .)))