With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Alex Rodriguez has 666 home runs.
text_B: The Bakri ® Balloon is a medical device invented by Dr. Younes Bakri .. The obstetrical balloon is a 24 French , 54 cm-long , silicone catheter with a filling capacity of 500 mL .. French. French catheter scale. The device is used for the temporary control and reduction of postpartum hemorrhage -LRB- PPH -RRB- .. postpartum hemorrhage. postpartum hemorrhage. According to the World Health Organization , around 100,000 maternal deaths occur every year from PPH and is the leading cause of maternal mortality in the developed world .. World Health Organization. World Health Organization
not_related.