What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z_1, z_1 is a politician if and only if z_1 is bored. For all z_1, z_1 will make tea or z_1 is not a politician. For all z_1, z_1 will not make tea.
For all z_1, if z_1 were a politician, then z_1 is making tea. For all z_1, if z_1 were a politician, then z_1 is bored. For all z_1, if z_1 were bored, then z_1 is a politician.