With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Americans premiered in the United States in 2011.
text_B: In music , a medley is a piece composed from parts of existing pieces , usually three , played one after another , sometimes overlapping .. overlapping. reinterpretation. They are common in popular music , and most medleys are songs rather than instrumental .. popular music. popular music. A medley which is a remixed series is called a megamix , often done with tracks for a single artist , or for popular songs from a given year or genre .. megamix. megamix. A medley is the most common form of overture for musical theater productions .. overture. overture. In Latin music , medleys are known as potpourris or mosaicos ; the latter were popularized by artists such as Roberto Faz and Billo Frometa , and most commonly consist of boleros , guarachas , merengues or congas .. Latin music. Latin music ( genre ). potpourris. Potpourri ( music ). Roberto Faz. Roberto Faz. Billo Frometa. Billo Frometa. merengues. merengue music. congas. conga ( music )
not_related.