ghost of a dog

how can that dog be barkin' in the backyard?, we ran over him years ago, how can that dog be runnin' by the back fence?, we ran over him years ago, ghost of a dog, barkin' in the backyard, how can that dog be scratchin' at the back door?, we ran over him years ago, how can that dog be lying under the shady tree, where we buried him years ago?, ghost of a dog, flyin' through the backyard