With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Software developers are Programmers.
text_B: California Powder Works was the first American explosive powder manufacturing company west of the Rocky Mountains .. Rocky Mountains. Rocky Mountains. California. California. When the outbreak of the Civil War cut off supplies of gunpowder to California 's mining and road-building industries , a local manufacturer was needed .. Civil War. American Civil War. gunpowder. gunpowder. California. California. Originally located near Santa Cruz , California , the company was incorporated in 1861 and began manufacturing gunpowder in May 1864 .. gunpowder. gunpowder. California. California. For fifty years , it was a major employer in the county , employing between 150 and 275 men .. The powder works was located on a flat adjacent to the San Lorenzo River , three miles upstream of Santa Cruz .. San Lorenzo River. San Lorenzo River
not_related.