( ( ( its ( depth ( and ( volume increases ) ) ) ) ( as temperatures ) ) ( ( go up ) . ) )
(ROOT (S (NP (NP (PRP$ its) (NN depth) (CC and) (NN volume) (NNS increases)) (PP (IN as) (NP (NNS temperatures)))) (VP (VBP go) (PRT (RP up))) (. .)))
its depth and volume increases as temperatures go up.
(ROOT (S (PP (IN As) (NP (NN temperature) (NNS increases))) (, ,) (NP (NN volume)) (VP (VBZ increases)) (. .)))