With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Good Will Hunting stars an actor.
text_B: This page contains a timeline of significant events regarding same-sex marriage and legal recognition of same-sex couples worldwide .. same-sex marriage. same-sex marriage. It begins with the history of same-sex unions during ancient times , which consisted of unions ranging from informal and temporary relationships to highly ritualized unions , and continues to modern-day state-recognized same-sex marriage .. same-sex marriage. same-sex marriage. state-recognized. Marriage law#State recognition. Events concerning same-sex marriages becoming legal in a country or in a country 's state are listed in bold .
not_related.