Complex sentence: She was encouraged by the United States government as part of President Roosevelt's Good Neighbor policy, designed to strengthen links with Latin America and Europe; it was believed that in delivering content like hers, the policy would be better received by the American public.
Split into simpler sentences: She was encouraged by the United States government as part of President Roosevelt's Good Neighbor policy, designed to strengthen links with Latin America and Europe. It was believed that in delivering content like hers, the policy would be better received by the American public.