给我三个不同类别的人名，并为每个人名提供一个具体背景，如职业、国籍等。
1. Emily Johnson - She is a software engineer from the United States who specializes in developing mobile applications.

2. Juan Rodriguez - He is a professional soccer player from Costa Rica who currently plays for a club team in Europe.

3. Fatima Ahmed - She is a human rights activist from Pakistan who advocates for equal rights and justice for women and marginalized communities in her country.