What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_12, x_12 is a taxi driver or x_12 is an office clerk. For all x_12, if x_12 were a taxi driver, then x_12 is a nurse. For all x_12, if x_12 were an office clerk, then x_12 is a nurse. There is at least one x_12 for which if x_12 were a carpenter, then x_12 is not making tea. For all x_12, if x_12 were a nurse, then x_12 is running. For all x_12, if x_12 goes running, then x_12 is making tea.
For all x_12, if x_12 were a taxi driver, then x_12 is running. For all x_12, if x_12 were an office clerk, then x_12 is running. For all x_12, if x_12 were a nurse, then x_12 is making tea. For all x_12, x_12 is a nurse.