With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: FC Barcelona was ranked first in the IFFHS Club World Ranking for 2015.
text_B: T Cephei is a Mira variable star in the constellation Cepheus .. Cepheus. Cepheus ( constellation ). Mira. Mira variable. Mira variable. Mira variable. Located approximately 190 pc distant , it varies between magnitudes 5.2 and 11.3 over a period of around 388 days .. It is a star of spectral class M6-9e , whose radius is 329 solar radii .. solar radii. solar radii. Meeting its coordinates are  : Lat  : 88.346 ° ; Long  : -47.756 ° Its rotation speed is 20 km / s and radial -3.4 km / s .
not_related.