With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Maria I of Portugal did not live to see the 5 October 1910 Revolution and she was Portuguese.
text_B: Dilated cardiomyopathy -LRB- DCM -RRB- is a condition in which the heart becomes enlarged and can not pump blood efficiently .. heart. heart. The decreased heart function can affect the lungs , liver , and other body systems .. heart. heart. DCM is one of the cardiomyopathies , a group of diseases that affect primarily the heart muscle .. heart. heart. cardiomyopathies. cardiomyopathy. heart muscle. myocardium. Different cardiomyopathies have different causes and affect the heart in different ways .. heart. heart. cardiomyopathies. cardiomyopathy. In DCM a portion of the myocardium is dilated , often without any obvious cause .. Left or right ventricular systolic pump function of the heart is impaired , leading to progressive heart enlargement via ventricular hypertrophy and ventricular dilation , a process called ventricular remodeling .. heart. heart. systolic. Systole ( medicine ). heart enlargement. cardiomegaly. ventricular hypertrophy. ventricular hypertrophy. ventricular dilation. ventricular dilation. ventricular remodeling. ventricular remodeling. Dilated cardiomyopathy is the most common form of non-ischemic cardiomyopathy .. ischemic. Ischemia. It occurs more frequently in men than in women , and is most common between the ages of 20 and 60 years .. About one in three cases of heart failure is due to dilated cardiomyopathy .. heart. heart. heart failure. heart failure. Dilated cardiomyopathy also occurs in children .
not_related.