pH : The pH of a lake describes either how acidic or basic the water is and helps influence which plant and animal species are present.
(pH; describes; ) Context(pH describes,List([0, 31))):(the water; is; ) (the water; helps; influence) Context(the water helps,List([59, 81))):(which plant and animal species; are; present)
pH describes,List([0, 31)) the water helps,List([59, 81))
pH the water the water which plant and animal species
describes is helps are
influence
present