I can't believe that you have not received a reply to this yet /SARC.
Maybe we should ask another non-Catholic:
Tell me which of the following syllogism are valid, and which are invalid. If you are capable of doing so, that will demonstrate that you can recognize the fallacy of the undistributed middle. If you can’t, you can’t.
A:
Dorothy is the mother of Sam.
Sam is a fireman.
Dorothy is the mother of a fireman.
B:
Evelyn is the mother of a fireman.
Gordon is a fireman.
Evelyn is the mother of Gordon.
C:
Mary is the mother of Jesus.
Jesus is God.
Mary is the mother of God.
D:
Mary is the Mother of God.
The Trinity is God.
Mary is the Mother of the Trinity.
Return to your pigeons. You’re in over your head.