With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For people who do not have a brother and nonsmokers, the probability of lung cancer is 68%. For people who do not have a brother and smokers, the probability of lung cancer is 46%. For people who have a brother and nonsmokers, the probability of lung cancer is 71%. For people who have a brother and smokers, the probability of lung cancer is 44%. For people who do not have a brother and with low pollution, the probability of smoking is 73%. For people who do not have a brother and with high pollution, the probability of smoking is 42%. For people who have a brother and with low pollution, the probability of smoking is 49%. For people who have a brother and with high pollution, the probability of smoking is 17%. The overall probability of high pollution is 53%.
text_B: Does having a brother positively affect lung cancer through smoking?
yes.