With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For normal weight people and without diabetes, the probability of long lifespan is 88%. For normal weight people and with diabetes, the probability of long lifespan is 64%. For obese people and without diabetes, the probability of long lifespan is 94%. For obese people and with diabetes, the probability of long lifespan is 57%. For normal weight people and nonsmokers, the probability of having diabetes is 18%. For normal weight people and smokers, the probability of having diabetes is 53%. For obese people and nonsmokers, the probability of having diabetes is 41%. For obese people and smokers, the probability of having diabetes is 79%. The overall probability of smoker is 2%.
text_B: Does obesity negatively affect lifespan through diabetes?
yes.