( ( ( ( Injection ( Fluid ( Density Density ) ) ) ( of ( this ( particular ( injection fluid ) ) ) ) ) ( at ( reservoir ( ( temperature and ) pressure ) ) ) ) . )
(ROOT (NP (NP (NNP Injection) (NNP Fluid) (NNP Density) (NNP Density)) (PP (IN of) (NP (DT this) (JJ particular) (NN injection) (NN fluid))) (PP (IN at) (NP (NN reservoir) (NN temperature) (CC and) (NN pressure))) (. .)))
Injection Fluid Density Density of this particular injection fluid at reservoir temperature and pressure.
(ROOT (S (NP (NNP Depth) (CC and) (NNP density)) (VP (VBP influence) (NP (NP (DT the) (NN pressure)) (PP (IN of) (NP (NNS fluids))))) (. .)))