高人帮我分析一下这个句子的语法

句子：how well substantiated are any claims that a particular conclusion follows from the facts that have been put forward．

来源：在论坛下载的OG 11版中WORD版 CR 里的一个句子

问题：这是不是打字错误造成的病句。如果不是，那that a particular conclusion follows from the facts that have been put forward．与 前面的any claims 是什么关系，好像不是状语从句啊。

how well substantiated are any claims [that a particular conclusion follows from the facts (that have been put forward)]

我也觉得怪怪的。好像这个句子没有谓语。(主语从句作主语）how well substantiated are any claims(定语从句）that a particular conclusion follows from the facts（定语从句) that have been put forward。这整一个说白了就是个主语。求解。

看懂了 谢谢楼上

原来主句倒装