With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Helena Bonham Carter was in a series.
text_B: John D. Baldeschwieler is an American chemist who has made significant contributions in Molecular Structure and Spectroscopy .. American. United States. Spectroscopy. Spectroscopy. chemist. chemist. Born on November 14 , 1933 , in Elizabeth , New Jersey , he was an alumnus of Cornell University -LRB- B.S. , 1956 , Chemical Engineering -RRB- and the University of California , Berkeley -LRB- Ph.D. , 1959 -RRB- .. Cornell University. Cornell University. He has taught at Harvard University , Stanford University and currently is the J. Stanley Johnson Professor and Professor of Chemistry , Emeritus at Caltech .. Chemistry. Chemistry. Harvard University. Harvard University. Stanford University. Stanford University. Caltech. Caltech
not_related.