With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Greyson Chance is a football player.
text_B: Mallala Motor Sport Park is a 2.6 km bitumen motor racing circuit near the town of Mallala in South Australia , 55 km north of the state capital , Adelaide .. motor racing. motor racing. Mallala. Mallala, South Australia. South Australia. South Australia. Adelaide. Adelaide
not_related.