With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The German Shepherd is a herding dog.
text_B: Jacob `` Jaap '' Oudkerk -LRB- born 2 August 1937 -RRB- is a retired cyclist from the Netherlands .. Netherlands. Netherlands. He competed in the 4000 m team pursuit at the 1960 and 1964 Summer Olympics and finished in fifth and third place , respectively .. team pursuit. team pursuit. 1960 Summer Olympics. 1964 Summer Olympics. 1964 Summer Olympics. He was also active in motor-paced racing .. motor-paced racing. motor-paced racing. After winning the world championships in the amateurs category in 1964 he turned professional and won three more world championship medals , including a gold in 1969 .. world championships. UCI Motor-paced World Championships. He was the husband of Marianne Heemskerk , a Dutch Olympic swimmer .. Marianne Heemskerk. Marianne Heemskerk
not_related.