Task: Sentence Expansion
Input (English): Habemus Papam refers to the announcement given in Latin by the Senior Cardinal Deacon when a new Pope has been chosen .
Output (English): Habemus papam ( ' We have a pope ' ) is the announcement traditionally given by the Protodeacon of the College of Cardinals ( the senior cardinal deacon in the College ) or by the senior cardinal deacon participating in the papal conclave , in Latin , upon the election of a new pope of the Catholic Church .