( ( ( RBC , ) ( red ( blood cell ) ) ) ; )
(ROOT (NP (NP (NNP RBC)) (, ,) (NP (JJ red) (NN blood) (NN cell)) (: ;)))
RBC, red blood cell;
(ROOT (S (NP (NNP Red) (NN blood) (NNS cells)) (VP (VBP are) (NP (DT the) (RBS most) (JJ numerous) (NN blood) (NNS cells))) (. .)))