With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The European Single Market includes Iceland.
text_B: Pyotr Dolgorukov may refer to  :. Pyotr Dmitriyevich Dolgorukov -LRB- 1866 -- 1951 -RRB-. Pyotr Dmitriyevich Dolgorukov. Pyotr Dmitriyevich Dolgorukov. Pyotr Vladimirovich Dolgorukov -LRB- 1816 -- 1868 -RRB-. Pyotr Vladimirovich Dolgorukov. Pyotr Vladimirovich Dolgorukov
not_related.