( ( The ( pressure underwater ) ) ( ( is ( related ( to ( ( ( the depth ) and ) ( ( the density ) ( of ( the water ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN pressure) (NN underwater)) (VP (VBZ is) (ADJP (VBN related) (PP (TO to) (NP (NP (DT the) (NN depth)) (CC and) (NP (NP (DT the) (NN density)) (PP (IN of) (NP (DT the) (NN water)))))))) (. .)))
The pressure underwater is related to the depth and the density of the water.
(ROOT (S (NP (NNP Depth) (CC and) (NNP density)) (VP (VBP influence) (NP (NP (DT the) (NN pressure)) (PP (IN of) (NP (NNS fluids))))) (. .)))