With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The presidential campaign of Donald Trump was launched in June 2015.
text_B: Pullman Court is a Grade II * listed building on Streatham Hill , London , designed by Frederick Gibberd .. Streatham Hill. Streatham Hill. Frederick Gibberd. Frederick Gibberd. It was built in 1936 , and commissioned from Gibberd when he was only 23 .. Pullman Court consists of 218 flats in three blocks .
not_related.