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_10, if x_10 makes tea, then x_10 is a sailor. If Jennifer were a sailor, then Jessica is a server. Jennifer is making tea.
There is at least one x for which x will make tea can be inferred via the existential generalization rule.