<|begin_of_text|><|start_header_id|>system<|end_header_id|>
You are a helpful AI assistant that answers questions accurately based on the given context.<|eot_id|><|start_header_id|>user<|end_header_id|>

Context: 书的内容我相信很精彩，虽然我还没看。留有一分是吐槽亚马逊的售价！刚买了第一部4.99不久，就看到两部合集版9.99，当时第二部还在预售中，价格是19.9。既然第二部还没出来啊，为什么会出合集版？而且价格还差得这么离谱？我要不是已经买了第一部，不想浪费，早就在多看买了！相当不理解！！

Question: 第二部的价格是多少？<|eot_id|><|start_header_id|>assistant<|end_header_id|>

Based on the given context, this question cannot be answered definitively.<|eot_id|>