With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: South Korea is the world's seventh largest advanced economy.
text_B: St Patrick 's Cathedral , Parramatta is the cathedral church of the Roman Catholic Diocese of Parramatta and the seat and residence of the Catholic Bishop of Parramatta , New South Wales , Australia , currently the Most Reverend Vincent Long Van Nguyen OFM Conv .. Australia. Australia. Roman Catholic. Roman Catholic. Diocese of Parramatta. Roman Catholic Diocese of Parramatta. Cathedral. Cathedral. Vincent Long Van Nguyen. Vincent Long Van Nguyen. OFM Conv. Conventual Franciscans. Roman Catholic Diocese of Parramatta. Roman Catholic Diocese of Parramatta. seat. cathedra. Catholic Bishop. Roman Catholic Bishop. Parramatta. Parramatta, New South Wales. the Most Reverend. the Most Reverend
not_related.