With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Brock Lesnar was in NPW.
text_B: Abilene Christian University 's College of Arts and Sciences is the largest college of ACU with 2,000 majors with 45 undergraduate and 9 graduate degree programs in 18 academic departments .. Abilene Christian University. Abilene Christian University
not_related.