premise: The long ears of rabbits are most likely an adaptation for detecting predators.
hypothesis: A fewer predators is most likely to cause the number of rabbits living in an area to increase.
hypothesis_graph_structure: A fewer predators<>is<>most likely to cause the number of rabbits$$$A fewer predators<>to cause<>the number of rabbits$$$rabbits<>living<>in an area<>to increase$$$the number of rabbits<>to increase<>