With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Of all venture capital investment in the United States, Silicon Valley accounts for one-third of it.
text_B: Bridgewater Center may refer to  :. Bridgewater Center Historic District , a historic district in Connecticut. Bridgewater Center Historic District. Bridgewater Center Historic District. Bridgewater Center , Ohio , an unincorporated community
not_related.