What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, x_8 will drink water if and only if x_8 is a taxi driver. For all x_8, x_8 is not a taxi driver. There is at least one x_8 for which x_8 will climb a mountain if and only if x_8 is poor. For all x_8, x_8 is poor if and only if x_8 will drink water.
For all x_8, if x_8 drinks water, then x_8 is a taxi driver. For all x_8, if x_8 were poor, then x_8 is drinking water. There is at least one x_8 for which if x_8 climbs a mountain, then x_8 is poor. For all x_8, if x_8 were a taxi driver, then x_8 is drinking water. For all x_8, if x_8 drinks water, then x_8 is poor. There is at least one x_8 for which if x_8 were poor, then x_8 is climbing a mountain. For all x_8, x_8 will not drink water.