Add punctuation to the following sentence: But it is also the tree of life in a region where it ensures the subsistence of nearly 3 millions people To try to preserve the perennity of the arganorchard UNESCO declared it world patrimony in 1999
But it is also the 'tree of life' in a region where it ensures the subsistence of nearly 3 millions people. To try to preserve the perennity of the argan-orchard, UNESCO declared it world patrimony in 1999.