{HEAD ~ The package} is opened by rotating {TAIL ~ the tab} so that the forward portion of the tab pushes the openable flap into the container 
is opened by rotating
{ HEAD ~ The package } is opened by rotating { TAIL ~ the tab } so that the forward portion of the tab pushes the openable flap into the container
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH