requalifying in a sentence

1. It’s my go-to marathon for requalifying.

2. The Worktiba Barigui is the first municipal coworking Brazil and followed the line of sustainability, requalifying an underutilized site Barigui Park.

3. The history of our product, highly certified, began with the ingenious intuition of requalifying the Triticum dicoccum, the most ancient and noble variety of spelt, respecting the strict criteria of organic farming.