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 56%. For normal weight people and with diabetes, the probability of long lifespan is 91%. For obese people and without diabetes, the probability of long lifespan is 55%. For obese people and with diabetes, the probability of long lifespan is 84%. For normal weight people and nonsmokers, the probability of having diabetes is 77%. For normal weight people and smokers, the probability of having diabetes is 88%. For obese people and nonsmokers, the probability of having diabetes is 45%. For obese people and smokers, the probability of having diabetes is 28%. The overall probability of smoker is 91%.
text_B: Does obesity positively affect lifespan through diabetes?
no.