( ( Cells ( are ( what ( ( make up ) ( the ( human body ) ) ) ) ) ) ( , ( ( ( often ( ( referred to ) ( as ( the bodies ) ) ) ) ( building blocks ) ) . ) ) )
(ROOT (SINV (S (NP (NNS Cells)) (VP (VBP are) (SBAR (WHNP (WP what)) (S (VP (VBP make) (PRT (RP up)) (NP (DT the) (JJ human) (NN body))))))) (, ,) (VP (ADVP (RB often)) (VBD referred) (PP (TO to)) (PP (IN as) (NP (DT the) (NNS bodies)))) (NP (NN building) (NNS blocks)) (. .)))
Cells are what make up the human body, often referred to as the bodies building blocks.
(ROOT (S (NP (NNS Cells)) (VP (VBP are) (NP (NP (DT the) (JJ basic) (NN building) (NNS blocks)) (PP (IN of) (NP (DT the) (JJ human) (NN body))))) (. .)))