With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leslie Groves was the overseer of the construction of the Pentagon.
text_B: `` i '' is a song by American rapper Kendrick Lamar .. Kendrick Lamar. Kendrick Lamar. It was released on September 23 , 2014 as the lead single from Lamar 's third studio album To Pimp a Butterfly .. To Pimp a Butterfly. To Pimp a Butterfly. The song utilizes music from `` That Lady '' , written by and originally performed by R&B group The Isley Brothers , elements from which were re-recorded rather than being directly sampled from the original record .. That Lady. That Lady ( song ). R&B. Rhythm and blues. The Isley Brothers. The Isley Brothers. sampled. Sampling ( music ). `` i '' won two awards at the 2015 Grammy Awards  : Best Rap Performance and Best Rap Song .. 2015 Grammy Awards. 57th Annual Grammy Awards. Best Rap Performance. Grammy Award for Best Rap Performance. Best Rap Song. Grammy Award for Best Rap Song
not_related.