With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tim Rice worked with a composer.
text_B: Henry John Stephen Smith -LRB- 2 November 1826 -- 9 February 1883 -RRB- was a mathematician remembered for his work in elementary divisors , quadratic forms , and Smith -- Minkowski -- Siegel mass formula in number theory .. mathematician. mathematician. elementary divisors. divisors. number theory. number theory. In matrix theory he is visible today in having his name on the Smith normal form of a matrix .. Smith normal form. Smith normal form. matrix theory. Matrix ( mathematics ). matrix. Matrix ( mathematics )
not_related.