With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Source Code had Jake Gyllenhaal in it.
text_B: Szczecin Scientific Society -LRB- Polish  : Szczecinskie Towarzystwo Naukowe , STN , Latin  : Societas Scientarum Scecinensis -RRB- is a general scientific society in Szczecin , Poland , associating researchers of all scientific branches .. Szczecin. Szczecin. Poland. Poland. It was founded in 1956 with its headquarters in Szczecin as the main scientific society in the Western Pomerania region .. Szczecin. Szczecin. Western Pomerania. Western Pomerania. Its main scope of activity is research on all aspects of -LRB- West -RRB- Pomeranian cities and regions , it organizes scientific conferences and popular lectures , publishes books and periodicals .. Main publications  :. Prace Wydziałow STN. Prace Wydziałow STN. Prace Wydziałow STN. Naukowy Informator Pomorza Zachodniego -LRB- since 1971 -RRB-. Naukowy Informator Pomorza Zachodniego. Naukowy Informator Pomorza Zachodniego
not_related.