With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Malcolm Young is co-founder of AC/DC.
text_B: Nizhnekamsky District -LRB- Нижнекамскии раион -LSB- Түбән Кама раионы , Tubən Kama rayonı -RSB- -RRB- is an administrative and municipal district -LRB- raion -RRB- , one of the forty-three in the Republic of Tatarstan , Russia .. Republic of Tatarstan. Republic of Tatarstan. raion. raion. forty-three. administrative divisions of the Republic of Tatarstan. Russia. Russia. It is located in the center of the republic .. The area of the district is 1672.3 km2 .. Its administrative center is the city of Nizhnekamsk -LRB- which is not administratively a part of the district -RRB- .. city. types of inhabited localities in Russia. Nizhnekamsk. Nizhnekamsk. administrative center. administrative center. Population  : 37,811 -LRB- 2002 Census -RRB- ;. 2002 Census. Russian Census ( 2002 )
not_related.