With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Italy's natives are Italians since the 11th century.
text_B: Sergey Kravkov may refer to. Sergey Kravkov -LRB- explorer -RRB- -LRB- 1894 -- 1942 -RRB- , Soviet hydrographer and Arctic explorer. Sergey Kravkov -LRB- agronomist -RRB- -LRB- 1873 -- 1938 -RRB- , Russian soil scientist and agricultural chemist. Sergey Kravkov -LRB- psychologist -RRB- -LRB- 1893 -- 1951 -RRB- , Russian psychologist and psychophysiologist
not_related.