With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Girls' Generation is also known as SNSD.
text_B: Johannes Ilberg -LRB- 10 July 1860 , Magdeburg -- 20 August 1930 , Leipzig -RRB- was a German educator and classical philologist who was the author of numerous works on ancient Greek medicine .. Magdeburg. Magdeburg. Leipzig. Leipzig. classical philologist. classical philologist. ancient Greek medicine. ancient Greek medicine. His father , Hugo Ilberg -LRB- 1828-1883 -RRB- , was a gymnasium director , and his uncle , Friedrich von Ilberg -LRB- 1858-1916 -RRB- , was a personal physician to Kaiser Wilhelm II .. Kaiser Wilhelm II. Kaiser Wilhelm II
not_related.