With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ulysses S. Grant served under the first President of the United States.
text_B: Dwayne Crutchfield -LRB- born September 30 , 1959 -RRB- is a former professional American football player who played running back for the New York Jets , Houston Oilers , and Los Angeles Rams .. New York Jets. New York Jets. Houston Oilers. Houston Oilers. Los Angeles Rams. Los Angeles Rams. American football. American football. running back. running back
not_related.