With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Beijing is the country's center of education.
text_B: Susan Tegg -LRB- born September 15 , 1975 -RRB- is an Australian sprint canoeist who competed in the mid-2000s .. sprint canoeist. canoe racing. At the 2004 Summer Olympics , she was eliminated in the semifinals of the K-2 500 m event .. 2004 Summer Olympics. 2004 Summer Olympics. K-2 500 m. Canoeing at the 2004 Summer Olympics – Women's K-2 500 metres
not_related.