{HEAD ~ An article}, including {TAIL ~ pet collars} and leashes, belts, bags and backpacks, has an interchangeable attachment 
{ HEAD ~ An article } , including { TAIL ~ pet collars } and leashes , belts , bags and backpacks , has an interchangeable attachment
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH