With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Music journalism is critical of popular music topics.
text_B: Music journalism -LRB- or `` music criticism '' -RRB- is media criticism and reporting about popular music topics , including pop music , rock music , and related styles .. music. music. pop music. pop music. rock music. rock music. popular music. popular music. Journalists began writing about music in the eighteenth century , providing commentary on what is now thought of as classical music .. music. music. classical music. classical music. In the 2000s , a more prominent branch of music journalism is an aspect of entertainment journalism , covering popular music and including profiles of singers and bands , live concert , and album reviews .. music. music. entertainment journalism. entertainment journalism. popular music. popular music. album. album
related.