With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ajab Prem Ki Ghazab Kahani is a 2009 romantic comedy film.
text_B: Professor Sir David Read FRS is Emeritus Professor of Plant Science in the Department of Animal and Plant Sciences at University of Sheffield .. FRS. Fellow of the Royal Society. Plant Science. Botany. University of Sheffield. University of Sheffield. His first degree and PhD came from University of Hull , the latter in 1963 .. University of Hull. University of Hull. He also serves on the Rothamsted Research Board of Directors. Read 's research focuses on plant and fungal physiology and ecology , particularly the biology of root-fungus symbioses .. root-fungus symbioses. Mycorrhizas
not_related.