Revert "Primer commi del curso de america"

This reverts commit 13479b2274d635c0b38290f0cb4d94d7eb4bf3c7.
Revert "Revert "Primer commi del curso de america""

This reverts commit 9ddd2e4c4cd73caf6d58e0382a3c85991b561755.
Estrutura semantica lista