With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Nilotic languages are a group of languages.
text_B: The National Ground Water Association -LRB- NGWA -RRB- , headquartered in Westerville , Ohio , is a membership-based nonprofit organization .. nonprofit organization. nonprofit organization. Founded in 1948 , the organization is composed of United States and international groundwater professionals in four membership divisions  : water well contractors , scientists and engineers , manufacturers , and suppliers .. United States. United States. groundwater. groundwater. NGWA provides short courses , conferences , and webinars related to the science of groundwater and the groundwater industry to both its members and the general public .. groundwater. groundwater. It publishes two peer-reviewed journals  : Groundwater and Groundwater Monitoring & Remediation , as well as a trade publication , Water Well Journal .. The association also offers voluntary certification programs .. certification. certification. NGWA also operates a separate nonprofit foundation , the National Ground Water Research and Educational Foundation .
not_related.