With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Vienna was the largest German-speaking city .
text_B: Until the beginning of the 20th century , it was the largest German-speaking city in the world , and before the splitting of the Austro-Hungarian Empire in World War I , the city had 2 million inhabitants .
SUPPORTS.