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 42%. For normal weight people and with diabetes, the probability of long lifespan is 66%. For obese people and without diabetes, the probability of long lifespan is 66%. For obese people and with diabetes, the probability of long lifespan is 89%. For normal weight people and nonsmokers, the probability of having diabetes is 100%. For normal weight people and smokers, the probability of having diabetes is 62%. For obese people and nonsmokers, the probability of having diabetes is 71%. For obese people and smokers, the probability of having diabetes is 41%. The overall probability of smoker is 89%.
text_B: Does obesity positively affect lifespan through diabetes?
no.