With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: San Francisco 's population density is under 18,000 people per square mile and Chicago 's is over 10,000 , in comparison the population density of Los Angeles ( under 9,000 ) is low .
text_B: Also , the population density of Los Angeles proper is average ( approximately 9,300 people per square mile ) when compared to some other large American cities such as New York ( 27,500 ) , San Francisco ( 19,000 ) , Boston ( 13,300 ) , and Chicago ( 9,200 ) .Haughton , Graham , and Colin Hunter , Sustainable Cities , London : Routledge , 2003 : 81 .
REFUTES.