Before revision:  However, we find that a direct application of G-thinker is insufficient due to the drastically different running time of different tasks that violates the original design assumption of G-thinker , requiring a system URLe.
After revision:  However, we found that directly using G-thinker is insufficient due to the drastically different running time of different tasks that violates the original design assumption of G-thinker , requiring a system URLe.