With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Maggie Gyllenhaal was unable to be in "Crazy Heart".
text_B: The following is a partial list of ` initialisms and acronyms commonly used in health care ' .. health care. health care. The terms listed are used in the English language within the health care systems of various countries .. health care. health care
not_related.