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