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_12 for which x_12 is fast or x_12 is not a musician. For all x_12, if x_12 were a poet, then x_12 is fast. For all x_12, if x_12 were fast, then x_12 is a poet. For all x_12, if x_12 were a poet, then x_12 is a musician.
For all x_12, if x_12 were fast, then x_12 is a musician. There is at least one x_12 for which if x_12 were a musician, then x_12 is fast. For all x_12, x_12 is a poet if and only if x_12 is fast. For all x_12, x_12 is fast if and only if x_12 is a poet.