With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tatiana Maslany starred in Diary of the Dead.
text_B: Bogumił Kazimierz Brzezinski -LRB- born 22 May 1943 -RRB- is a Polish chemist , Professor of chemistry science who specialises in the field of infrared spectroscopy , hydrogen bonds .. Polish. Poles. chemist. chemist. Professor. Professor. chemistry. chemistry. science. science. infrared spectroscopy. infrared spectroscopy. Co-worker of Prof. Georg Zundel .. Georg Zundel. Georg Zundel. He is co-author of nearly 400 original scientific publications .. scientific publications. scientific publications
not_related.