With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 2016, Nick Jonas released his third studio album.
text_B: This article has written in 2007 and has last been partly updated concerning substance in February 2014 .. However , some sections of the article may be out of date , for example if the data found in sources are from an older date .. Please feel free to update this article .. The water and sanitation sector in Peru has made important advances in the last two decades , including the increase of water coverage from 30 % to 85 % between 1980 and 2010 .. water. water. sanitation. sanitation. Peru. Peru. Sanitation coverage has also increased from 9 % to 37 % from 1985 to 2010 in rural areas .. Advances have also been achieved concerning the disinfection of drinking water and in sewage treatment .. water. water. drinking water. drinking water. sewage treatment. sewage treatment. Nevertheless , many challenges remain , such as  :. Insufficient service coverage ;. Poor service quality which puts the population 's health at risk ;. Deficient sustainability of built systems ;. Tariffs that do not cover the investment and operational costs , as well as the maintenance of services ;. Institutional and financial weakness ; and ,. Excess of human resources , poorly qualified , and high staff turnover .
not_related.