Task: Question Answering
Input (English): Suppose 5*u + 2 = v + 2*u, 0 = -3*v - 4*u + 19. Suppose -5*h - 5*k = 0, 4*h - 6 = 2*k + 6. Solve 1 = 4*p + 3*r, h = v*p + 4*r + 1 for p.
Output (English): 1