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_7 for which x_7 is not an electrician or x_7 will drink water. For all x_7, if x_7 drinks water, then x_7 is making tea. For all x_7, x_7 is an electrician or x_7 is a janitor. For all x_7, x_7 is a janitor if and only if x_7 will make tea.
There is at least one x_7 for which x_7 is a janitor or x_7 will drink water. For all x_7, if x_7 were a janitor, then x_7 is making tea. For all x_7, if x_7 makes tea, then x_7 is a janitor.