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 80%. For normal weight people and with diabetes, the probability of long lifespan is 50%. For obese people and without diabetes, the probability of long lifespan is 54%. For obese people and with diabetes, the probability of long lifespan is 22%. For normal weight people and nonsmokers, the probability of having diabetes is 14%. For normal weight people and smokers, the probability of having diabetes is 40%. For obese people and nonsmokers, the probability of having diabetes is 39%. For obese people and smokers, the probability of having diabetes is 69%. The overall probability of smoker is 17%.
text_B: Does obesity negatively affect lifespan through diabetes?
yes.