With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sarah Michelle Gellar played the part of Kathryn Merteuil.
text_B: Jo Boaler is a British education author and is Professor of Mathematics Education at the Stanford Graduate School of Education .. British. United Kingdom. Stanford Graduate School of Education. Stanford Graduate School of Education. Boaler is involved in promoting mathematics education reform and equitable mathematics classrooms .. mathematics education reform. reform mathematics. She is the co-founder of Youcubed , a Stanford center that provides mathematics education resources to teachers , students and parents .. Youcubed. Youcubed. She is the author of eight books , including Mathematical Mindsets -LRB- 2016 -RRB- , What 's Math Got To Do With It ?. -LRB- 2009 -RRB- and The Elephant in the Classroom -LRB- 2010 -RRB- , all written for teachers and parents with the goal of improving mathematics education in both the US and UK .. Her 1997 / 2002 book , Experiencing School Mathematics , won the `` Outstanding Book of the Year '' award for education in Britain .
not_related.