The data manipulation services (in the lower layer) extract data from the physical repositories, and semantic services turn this data into information.

数据操作服务(在下方的层中)从物理存储库中提取数据，并且语义服务将该数据转换为信息。

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Indirect purchasers who in many cases actually paid the inflated prices are left to sue in state court, where the class-action attorneys have developed a specialized practice to extract an extra layer of revenue from this litigation.

FORBES: U.K. Holds Off Class-Action Tide, For Now