With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rowan Atkinson stars in an American television series.
text_B: E Centauri -LRB- E Cen -RRB- is a star in the constellation Centaurus .. Centaurus. Centaurus. star. star. constellation. constellation. It is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.34 and is approximately 600 light years from Earth .. B-type. stellar classification. main sequence dwarf. main sequence. apparent magnitude. apparent magnitude. light years. light years. Earth. Earth
not_related.