With a green roof, you have plants and flowers and trees that absorb sunlight and release oxygen.
(you; have; plants and flowers and trees that absorb sunlight and release oxygen) (plants and flowers and trees; absorb; sunlight) (plants and flowers and trees; release; oxygen)
you plants and flowers and trees plants and flowers and trees
have absorb release
plants and flowers and trees that absorb sunlight and release oxygen
sunlight
oxygen