With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The Berlin Wall was a wall that separated East and West Germany .
text_B: Before the Wall 's erection , 3.5 million East Germans circumvented Eastern Bloc emigration restrictions and defected from the GDR , many by crossing over the border from East Berlin into West Berlin ; from which they could then travel to West Germany and other Western European countries .
SUPPORTS.