With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: R. Kelly wrote a song for the soundtrack of Space Jam.
text_B: Runnin ' is the debut single by Canadian-British dance music duo Doman & Gooding , which also features Canadian R&B singer Dru and Lincoln .. Dru. Dru ( singer ). Canadian-British. Canadian-British. dance music. dance music. The song samples Armand Van Helden 's 1999 dance single `` You Do n't Know Me . ''. Armand Van Helden. Armand Van Helden
not_related.