I am unable to find any warrant for the belief that any period has offered men the kind of peace and certainty that the modern age is clamoring for.
主句：I am unable to find any warrant for the belief ，
belief的同位语从句：that any period has offered men the kind of peace and certainty that the modern age is clamoring for.
同位语从句中certainty的定语从句：that the modern age is clamoring for.
这样划分对吗？
还有两个疑问：
1，在英语中，是不是关系代词代替的先行词只能是一个，而不会是“某某and某某”，就像上面的句子，是不是只代替certainty，而不是peace and certainty，对吗？
2，同位语从句是不是只能紧跟着它所要具体说明的名词后面，而不能像某些定语从句那样，可以出现分隔的情况？
1. 句子划分基本正确，只有一点有误：同位语从句中定语从句的先行词应该是peace and certainty.也就是说，关系代词（that）所代替的先行词不一定只是一个，也有可能是“... and ...”。到底是哪一个，应该根据句意进行判断。如：There are enough workers and equipment that we need.此时that代替的是workers and euipment.再如：I want to make friends with you and the man whom you talked with just now.此时whom只代替the man.楼主给的这个例句，从句意上来
