Theme of Liberty and Exile

The story "Liberty" and the poem "Exile" were both written by Julia Alvarze. The theme of these two is incredibally similar and almost exactly the same. Even the story lines are talking about the same event. Both of them are talking about running away from the Dominican Republic when she was still a child. Despite that the two works are almost the same and they have similar themes, the theme of "Liberty" is "People are desperate to live in a free world". However, the theme of "Exile" is "Freedom is valuable". Both of them are talking about freedom, but the events and the conflicts are sort of different. For example: In "Liberty", there was this dog name "Liberty", and it doesn't talk about the life in U.S. like what she did in "Exile".