( They ( ( ( are ( suitable ( for use ) ) ) ( with ( all ( foam ( ( concentrate types ) ( with ( ( ( either salt ) or ) ( fresh water ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP are) (ADJP (JJ suitable) (PP (IN for) (NP (NN use)))) (PP (IN with) (NP (DT all) (NN foam) (S (VP (VB concentrate) (NP (NNS types)) (PP (IN with) (NP (NP (DT either) (NN salt)) (CC or) (NP (JJ fresh) (NN water))))))))) (. .)))
They are suitable for use with all foam concentrate types with either salt or fresh water.
(ROOT (S (NP (JJ Fresh) (NN water) (NNS biomes)) (VP (VBP are) (VP (VBN defined) (PP (IN by) (NP (JJ low) (NN salt) (NN concentration))))) (. .)))