( Red ( blood ( cell indices ) ) )
(ROOT (NP (JJ Red) (NN blood) (NN cell) (NNS indices)))
Red blood cell indices
(ROOT (S (NP (NNP Red) (NN blood) (NNS cells)) (VP (VBP are) (NP (DT the) (RBS most) (JJ numerous) (NN blood) (NNS cells))) (. .)))