With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mariah Carey is an award winning American songwriter.
text_B: Gert Heidler -LRB- born January 30 , 1948 -RRB- is a former football -LRB- soccer -RRB- player for Dynamo Dresden , where he played from 1962 until 1982 , making 282 appearances .. Dynamo Dresden. Dynamo Dresden. He won the gold medal at the 1976 Summer Olympics .. 1976 Summer Olympics. 1976 Summer Olympics. He later worked as a coach .
not_related.