With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stranger Things is set in the 1900s.
text_B: Theodore `` Teddy '' Yip was a businessman from Indonesia who was instrumental in developing Macau as a tourist destination and who was a Formula One team owner in the 1970s .. Macau. Macau. Formula One. Formula One
not_related.