His wealth,is based on his company,Microsoft,of which he owns 39% of the shares.
问题描述：
His wealth,is based on his company,Microsoft,of which he owns 39% of the shares.
请帮忙分析这句话,特别是 of which he owns 39% of the shares这个定语从句,这种介词+which/whom/whose的,我一看就慌
答
His wealth is based on his company.
His Company is Microsoft.
And He owns 39% of the shares of Microsoft.