With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Equidae excludes horses, donkeys, and zebras.
text_B: Dolichyl-P-Man  : Man -LRB- 7 -RRB- GlcNAc -LRB- 2 -RRB- - PP-dolichyl-alpha-1 ,6 - mannosyltransferase is an enzyme that in humans is encoded by the ALG12 gene .. enzyme. enzyme. gene. gene
not_related.