With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cochrane has more than 37,000 volunteers.
text_B: Cochrane , previously known as the Cochrane Collaboration , is an independent , non-profit , non-governmental organization consisting of a group of more than 37,000 volunteers in more than 130 countries .. non-profit. nonprofit organization. non-governmental organization. non-governmental organization. The group was formed to organize medical research information in a systematic way to facilitate the choices that health professionals , patients , policy makers and others face in health interventions according to the principles of evidence-based medicine .. evidence-based medicine. evidence-based medicine. The group conducts systematic reviews of randomized controlled trials of health-care interventions and diagnostic tests , which it publishes in The Cochrane Library .. Cochrane Library. Cochrane Library. A few reviews -LRB- in fields such as occupational health -RRB- have also studied the results of non-randomized , observational studies .. occupational health. occupational health. observational studies. Observational study
related.