With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Marie Antoinette is not a mother.
text_B: Campbell -LSB- ˈkæmbəl -RSB- is a city in Santa Clara County , California , and part of Silicon Valley , in the San Francisco Bay Area .. Santa Clara County. Santa Clara County, California. California. California. County. List of counties in California. Santa Clara. Santa Clara County, California. Silicon Valley. Silicon Valley. San Francisco Bay Area. San Francisco Bay Area. As of the 2010 U.S. Census , Campbell 's population is 39,349 .. Although not a major high-tech city like many of its neighbors , Campbell is the original home of eBay and of its creator , Pierre Omidyar .. eBay. eBay. Pierre Omidyar. Pierre Omidyar. Campbell is home to the Pruneyard Shopping Center , a sprawling open-air retail complex which was involved in a famous U.S. Supreme Court case that established the extent of the right to free speech in California .. California. California. Pruneyard Shopping Center. Pruneyard Shopping Center. U.S. Supreme Court. U.S. Supreme Court. case. Pruneyard Shopping Center v. Robins. Today the Pruneyard Shopping Center is home to the South Bay offices of the Federal Bureau of Investigation .. Pruneyard Shopping Center. Pruneyard Shopping Center. Federal Bureau of Investigation. Federal Bureau of Investigation
not_related.