Control activities occur at all levels and functions of the entity.
( ( Control activities ) ( ( occur ( at ( ( all ( ( levels and ) functions ) ) ( of ( the entity ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Control) (NNS activities)) (VP (VBP occur) (PP (IN at) (NP (NP (DT all) (NNS levels) (CC and) (NNS functions)) (PP (IN of) (NP (DT the) (NN entity)))))) (. .)))
Control activities happen everywhere in the entity. 
( ( Control activities ) ( ( ( happen everywhere ) ( in ( the entity ) ) ) . ) )
(ROOT (S (NP (NNP Control) (NNS activities)) (VP (VBP happen) (ADVP (RB everywhere)) (PP (IN in) (NP (DT the) (NN entity)))) (. .)))