A man wearing a denim jacket and jeans welds on a bridge above water while wearing his safety mask.
A clad in denim person works is working on a bridge outdoors.
A man wearing a denim means there is a clad in denim and of him welding on bridge means he working on a bridge outdoors (bridge is not supposed to be placed inside home/indoors).
Man and person refer to same person in denim
The person working on the bridge is wearing a denim jacket.