With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For nonsmokers and are lazy, the probability of being lactose intolerant is 49%. For nonsmokers and are hard-working, the probability of being lactose intolerant is 75%. For smokers and are lazy, the probability of being lactose intolerant is 16%. For smokers and are hard-working, the probability of being lactose intolerant is 47%. For nonsmokers, the probability of being hard-working is 75%. For smokers, the probability of being hard-working is 49%.
text_B: If we disregard the mediation effect through effort, would smoking positively affect lactose intolerance?
no.