Consider the following premises. For all z_3, if z_3 were an astronaut, then z_3 is fast. For all z_3, if z_3 were a server, then z_3 is working. For all z_3, if z_3 were fast, then z_3 is a server. For all z_3, if z_3 works, then z_3 is an astronaut. Can we infer the following from them? The fact that Susan were an astronaut does not imply that Susan is fast.
That contradicts the premises. Therefore the answer is no.