With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tyrese Gibson is well known for a role.
text_B: Oakbrook Preparatory School is a private Christian based 3K -- 12 school , located in Spartanburg , South Carolina .. It consists of a lower school for 3K-4th graders , a middle school for 5th -- 8th graders , and an upper school for 9th -- 12th graders .
not_related.