关于OG171的新问题：SO的用法

brissa

以下是引用ring_cheng在2005-1-21 11:21:00的发言：

B的解释：“B substitutes an illogical coordinate predicate for the needed prupose clause; Because the annulment had not yet been granted, Henry could not remarry.”

拜托谁帮我名词解释一下coordinate predicate，还有这句话整句怎么翻译。