With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Man of Steel (film) starred an American actress and singer.
text_B: Kamsko-Ustyinsky District -LRB- Камско-Устьинскии раион -LSB- Кама Тамагы раионы , Kama Tamagı 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 west of the republic and borders with Verkhneuslonsky District in the north , Tetyushsky District in the south , Apastovsky District in the west , and with Kuybyshev Reservoir in the east .. Verkhneuslonsky District. Verkhneuslonsky District. Tetyushsky District. Tetyushsky District. Apastovsky District. Apastovsky District. Kuybyshev Reservoir. Kuybyshev Reservoir. The area of the district is 1199 km2 .. Its administrative center is the urban locality -LRB- an urban-type settlement -RRB- of Kamskoye Ustye .. urban-type settlement. urban-type settlement. Kamskoye Ustye. Kamskoye Ustye. administrative center. administrative center. urban locality. types of inhabited localities in Russia. Population  : 18,518 -LRB- 2002 Census -RRB- ; The population of Kamskoye Ustye accounts for 26.5 % of the district 's total population .. Kamskoye Ustye. Kamskoye Ustye. 2002 Census. Russian Census ( 2002 )
not_related.