[问题]请帮我分析一下这句话，谢谢

luckywawaUID: 54279

The 38 corporations that filed United States income tax returns showing a net income of more than $100 million accounted for 53 percent of the total taxable income from foreign sources reported on all tax returns. Sixty percent of the total taxable income from foreign sources came from the 200 returns reporting income from 10 or more countries.

第一句的主谓宾我看出来是 corporations      accounted for     53%
但是第一个从句我不是看得很明白，能不能帮我分析一下呀，我有点晕了
还有第二句的几个from我也看的晕乎乎的，能不能给我讲解一下呀
谢谢啊

youngwangUID: 107791

The 38 corporations定语从句 (that filed United States income tax returns )分词修饰corporation:(showing a net income of more than $100 million) f谓语(accounted for )53 percent of the total taxable income from foreign sources r定语(eported on all tax returns.) Sixty percent of the total taxable income 介词短语修饰income:(from foreign sources )came from the 200 returns reporting income 修饰前面income(from 10 or more countries. )