With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Silicon Valley is in a state.
text_B: Switch is the first album by R&B band , Switch , released in 1978 .. Switch. Switch ( band ). R&B. R&B. 1978 in music. It is also their first on the Motown subsidiary Gordy .. Motown. Motown. After recording as White Heat and Hot Ice , this gave them the commercial breakthrough they desired with hits like `` There 'll Never Be '' and `` I Wan na Be Closer '' .
not_related.