It is possible that there is a definite relation between these paintings and the markings that sometimes accompany them.
问题描述：
It is possible that there is a definite relation between these paintings and the markings that sometimes accompany them.句子成份是
them指的是什么，谁伴随谁
答
首先是 it is +adj+ that 的结构 是主语从句,it 是形式主语,真正的主语在that部分
主语部分,是一个there be 句型
paintings markings是先行词,that smetimes accompany them是修饰他们的定语从句smetimes accompany them看不懂，谁伴随谁代词的them指代paintings 定语从句的先行词只是指代markings 很可能是这些油画以及伴随而来的评论之间存在确定关系那么，them就是指paintings， that smetimes accompany them是先行词markings的定语从句是吗？是啊