With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Paris Hilton had a single.
text_B: Videodisc -LRB- or video disc -RRB- is a general term for a laser - or stylus-readable random-access disc that contains both audio and analog video signals recorded in an analog form .. laser. laser. stylus. stylus. audio. Sound. analog video. Video#Analog video. Typically , it is a reference to any such media that predates the mainstream popularity of the DVD format .. DVD. DVD
not_related.