With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: IBM invented the hard disk drive in 1982.
text_B: Mary , Queen of Scots , has inspired artistic and cultural works for more than four centuries .. The following lists cover various media , enduring works of high art , and recent representations in popular culture , film and fiction .. The entries represent portrayals that a reader has a reasonable chance of encountering rather than a complete catalogue .
not_related.