想问一下这个句子的语法结构

想问一下这个句子的语法结构
An array of tax incentives has led to a boom in the construction of new office buildings; so abundant has capital been for commercial real estate that investors regularly scour the country for areas in which to build
还有请分析下这个句子的语法结构.so abundant has capital been for commercial real estate that investors regularly scour the country for areas in which to build

一系列的税务刺激措施促进了新办公大楼建设的快速发展,所以大量过去从事商业房地产并且有资金的投资者被分流到那些国家真正需要建设的领域去了.
so abundant has capital been for commercial real estate 定语前置