With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: PageRank was named after Xavier Dolan.
text_B: PageRank -LRB- PR -RRB- is an algorithm used by Google Search to rank websites in their search engine results .. Google Search. Google Search. PageRank was named after Larry Page , one of the founders of Google .. Larry Page. Larry Page. PageRank is a way of measuring the importance of website pages .. According to Google  : It is not the only algorithm used by Google to order search engine results , but it is the first algorithm that was used by the company , and it is the best-known .
related.