With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 2011 was the year Quartet was filmed.
text_B: Calfreisen -LRB- -LSB- -RRB- is a former municipality in the district of Plessur in the canton of Graubunden in Switzerland .. Plessur. Plessur ( district ). municipality. Municipalities of Switzerland. canton. Cantons of Switzerland. Graubunden. Graubunden. Switzerland. Switzerland. On 1 January 2013 the former municipalities of Calfreisen , Castiel , Langwies , Luen , Molinis , Peist and St. Peter-Pagig merged into the municipality of Arosa .. Castiel. Castiel, Switzerland. municipality. Municipalities of Switzerland. Langwies. Langwies. Luen. Luen. Molinis. Molinis. Peist. Peist. St. Peter-Pagig. St. Peter-Pagig. Arosa. Arosa
not_related.