With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For infants who do not have a sister and low infant birth weight, the probability of high infant mortality is 40%. For infants who do not have a sister and normal infant birth weight, the probability of high infant mortality is 67%. For infants who have a sister and low infant birth weight, the probability of high infant mortality is 13%. For infants who have a sister and normal infant birth weight, the probability of high infant mortality is 42%. For infants who do not have a sister and with poor health, the probability of normal infant birth weight is 52%. For infants who do not have a sister and with good health, the probability of normal infant birth weight is 11%. For infants who have a sister and with poor health, the probability of normal infant birth weight is 73%. For infants who have a sister and with good health, the probability of normal infant birth weight is 44%. The overall probability of good health is 19%.
text_B: Does having a sister positively affect infant mortality through infant's birth weight?
yes.