( ( Aerobics ( and ( strength ( conditioning programs ) ) ) ) ( ( play ( ( an ( accepted ( and ( important role ) ) ) ) ( in ( ( the development ) ( of ( ( proper ( physical fitness ) ) ( for ( individuals ( of ( all ages ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Aerobics) (CC and) (NN strength) (NN conditioning) (NNS programs)) (VP (VBP play) (NP (NP (DT an) (JJ accepted) (CC and) (JJ important) (NN role)) (PP (IN in) (NP (NP (DT the) (NN development)) (PP (IN of) (NP (NP (JJ proper) (JJ physical) (NN fitness)) (PP (IN for) (NP (NP (NNS individuals)) (PP (IN of) (NP (DT all) (NNS ages))))))))))) (. .)))
Aerobics and strength conditioning programs play an accepted and important role in the development of proper physical fitness for individuals of all ages.
(ROOT (S (NP (NP (DT The) (NN structure)) (PP (IN of) (NP (NN mitochondrion)))) (VP (VBZ plays) (NP (NP (DT an) (JJ important) (NN role)) (PP (IN in) (NP (JJ aerobic) (NN respiration))))) (. .)))