( ( ( ( ( ( the trillions ) ( of ( grains ( of ( sand ( on ( a beach ) ) ) ) ) ) ) , ) ( ( ( the trillions ) ( of ( air ( ( molecules or ) atoms ) ) ) ) ( that ( ( make up ) ( your body ) ) ) ) ) , ) ( etc. . ) )
(ROOT (S (NP (NP (NP (DT the) (NNS trillions)) (PP (IN of) (NP (NP (NNS grains)) (PP (IN of) (NP (NP (NN sand)) (PP (IN on) (NP (DT a) (NN beach)))))))) (, ,) (NP (NP (DT the) (NNS trillions)) (PP (IN of) (NP (NN air) (NNS molecules) (CC or) (NNS atoms))) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (PRP$ your) (NN body)))))) (, ,)) (VP (VBZ etc.)) (. .)))
the trillions of grains of sand on a beach, the trillions of air molecules or atoms that make up your body, etc.
(ROOT (S (NP (NNP Air)) (VP (VBZ is) (VP (VBN made) (PP (IN of) (NP (NNS atoms))))) (. .)))