( ( The pressure ) ( ( depends ( ( ( ONLY ( on ( the depth ) ) ) and ) ( ( the density ) ( of ( the fluid ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN pressure)) (VP (VBZ depends) (NP (NP (NP (NNP ONLY)) (PP (IN on) (NP (DT the) (NN depth)))) (CC and) (NP (NP (DT the) (NN density)) (PP (IN of) (NP (DT the) (NN fluid)))))) (. .)))
The pressure depends ONLY on the depth and the density of the fluid.
(ROOT (S (NP (NNP Depth) (CC and) (NNP density)) (VP (VBP influence) (NP (NP (DT the) (NN pressure)) (PP (IN of) (NP (NNS fluids))))) (. .)))