could anyone help me with a sentence? It was from an article in the Asahi about the leadership change in North Korea. The full sentence is 拉致被害者の早い救出も、そこによるところは大きい。I understand the first part of the sentence - the rapid rescue of the abduction victims as well. However, I am not sure about the second part. How do you translate そこによる and ところは大きい into English? Is による 似寄る or に拠る? Thank you for your help.