Complex sentence: Maintenance of the trail is carried out by the Friends of Rodwell Trail group, who carry out litter picks and clear overgrowth on the route and have been promoted by local publications such as the Dorset Echo for their work.
Split into simpler sentences: Maintenance of the trail is carried out by the Friends of Rodwell Trail group, who carry out litter picks and clear overgrowth on the route. Their work has been promoted by local publications such as the Dorset Echo for their work.