Examlex
When joining tables,it is always necessary to qualify a column name.
White Rat
A commonly used laboratory animal, specifically a breed of the brown rat (Rattus norvegicus) with white fur, used in psychological and medical research.
Jane Addams
An American social reformer and Nobel Peace Prize laureate, known for co-founding the Hull House in Chicago, which provided social and educational opportunities for working-class people.
Julia Lathrop
An American social reformer in the late 19th and early 20th centuries, known for her work in improving the welfare of children, women, and the mentally ill.
Progressive Era
A period of widespread social activism and political reform across the United States from the 1890s to the 1920s, aimed at eliminating problems caused by industrialization, urbanization, immigration, and corruption.
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