With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Huntington's disease is the subject of research.
text_B: Phillip Daniel Eatherton -LRB- born January 2 , 1974 -RRB- is a former volleyball player .. volleyball. volleyball. He played for the United States national team at the 2004 Summer Olympics .. United States national team. United States men's national volleyball team. 2004 Summer Olympics. 2004 Summer Olympics. He also played for Ball State University .. Ball State University. Ball State University
not_related.