What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_8, x_8 is an electrician if and only if x_8 will drink water. For all x_8, x_8 is an office clerk if and only if x_8 will work. For all x_8, x_8 will drink water if and only if x_8 is an office clerk. For all x_8, x_8 will not work.
For all x_8, if x_8 were an electrician, then x_8 is drinking water can be inferred via the universal biconditional elimination rule. For all x_8, if x_8 were an office clerk, then x_8 is working can be inferred via the universal biconditional elimination rule. For all x_8, if x_8 drinks water, then x_8 is an office clerk can be inferred via the universal biconditional elimination rule. For all x_8, if x_8 drinks water, then x_8 is an electrician can be inferred via the universal biconditional elimination rule. For all x_8, if x_8 works, then x_8 is an office clerk can be inferred via the universal biconditional elimination rule. For all x_8, if x_8 were an office clerk, then x_8 is drinking water can be inferred via the universal biconditional elimination rule. For all x_8, x_8 is not an office clerk can be inferred via the universal biconditional elimination rule.