First of all, a deacon is NOT a penis, nor is it a "low" ranking in the Roman Catholic Church.
In Catholicism, a Deacon is a lower form of a priest, a helper basically ( the Greek word Deacon means assistant.) Deacons do not have the authority to forgive sins or consecrate Holy Communion, though they may witness marriages and baptise.In conclusion, Deacons usually help the Priest and read scripture in the Mass.
Lastly, it is not a "low" rank in the Church, as training to become a Deacon takes over 4 years. Deacons can be seen as a higher rank than the standard Lay Person, or possibly even religious Brothers and Sisters.
2. College of Cardinals
5. Deacon(my dad)/Religious Orders