premise: The problem is that safe yield ignores the complex relationships between surface water (lakes, streams, springs, and marshes) and groundwater (water found in underground rock formations called aquifers).
hypothesis: You call water that flows out of the ground where an aquifer meets the surface a(n) spring.
hypothesis_graph_structure: You<>call<>water that flows out of the ground$$$water<>flows<>out of the ground$$$an aquifer<>meets<>the surface<>the ground