{:sid => 'S1', :pid => 'P1', :qty => 300}
{:sid => 'S1', :pid => 'P2', :qty => 200}
{:sid => 'S1', :pid => 'P3', :qty => 400}
{:sid => 'S1', :pid => 'P4', :qty => 200}
{:sid => 'S1', :pid => 'P5', :qty => 100}
{:sid => 'S1', :pid => 'P6', :qty => 100}
{:sid => 'S2', :pid => 'P1', :qty => 300}
{:sid => 'S2', :pid => 'P2', :qty => 400}
{:sid => 'S3', :pid => 'P2', :qty => 200}
{:sid => 'S4', :pid => 'P2', :qty => 200}
{:sid => 'S4', :pid => 'P4', :qty => 300}
{:sid => 'S4', :pid => 'P5', :qty => 400}