What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_13, if x_13 works, then x_13 is fast. For all x_13, if x_13 were fast, then x_13 is a mechanic. For all x_13, x_13 is a server. For all x_13, x_13 will make tea if and only if x_13 is a mechanic. For all x_13, if x_13 were a server, then x_13 is working.
For all x_13, x_13 will work. For all x_13, if x_13 works, then x_13 is a mechanic. For all x_13, if x_13 were a server, then x_13 is fast. For all x_13, if x_13 makes tea, then x_13 is a mechanic. For all x_13, if x_13 were a mechanic, then x_13 is making tea.