With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arnold Schwarzenegger was incapable of being involved with work by James Cameron.
text_B: Roberto Alaiz Villacorta -LRB- born 20 July 1990 in Leon -RRB- is a male Spanish long-distance runner .. Leon. Leon, Spain. long-distance runner. long-distance running. He competed in the 3000 metres steeplechase event at the 2013 World Championships .. 3000 metres steeplechase event. 2015 World Championships in Athletics – Men's 3000 metres steeplechase. 2013 World Championships. 2013 World Championships in Athletics. He also competed in the 3000 metres steeplechase event at the 2015 World Championships in Beijing but did not finish .. 3000 metres steeplechase event. 2015 World Championships in Athletics – Men's 3000 metres steeplechase. 2015 World Championships. 2015 World Championships in Athletics
not_related.