( ( Mitochondria ( these organelles ) ) ( ( are ( ( the ( power plants ) ) ( that ( convert ( ( the food ) ( we ( eat ( into ( ( the energy ) ( that ( drives ( our cells ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Mitochondria)) (NP (DT these) (NNS organelles))) (VP (VBP are) (NP (NP (DT the) (NN power) (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBP convert) (NP (NP (DT the) (NN food)) (SBAR (S (NP (PRP we)) (VP (VBP eat) (PP (IN into) (NP (NP (DT the) (NN energy)) (SBAR (WHNP (WDT that)) (S (VP (VBZ drives) (NP (PRP$ our) (NNS cells)))))))))))))))) (. .)))
Mitochondria these organelles are the power plants that convert the food we eat into the energy that drives our cells.
(ROOT (S (NP (DT The) (NN mitochondria) (NNS organelles)) (VP (VBP are) (VP (VBN known) (PP (IN as) (NP (NP (DT the) (`` ``) (NN power) (NNS plants) ('' '')) (PP (IN of) (NP (DT the) (NN cell))))))) (. .)))