{HEAD ~ a radio} responsive to opening {TAIL ~ the container}, said radio including a speaker for facilitating output of sound; and 
responsive to opening
{ HEAD ~ a radio } responsive to opening { TAIL ~ the container } , said radio including a speaker for facilitating output of sound ; and
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH