{HEAD ~ The supply subsystem} includes a replaceable exterminating liquid reservoir, {TAIL ~ an electrically driven pump} and switch means coupled to a source of electrical energy to selectively energize the pump 
includes
{ HEAD ~ The supply subsystem } includes a replaceable exterminating liquid reservoir , { TAIL ~ an electrically driven pump } and switch means coupled to a source of electrical energy to selectively energize the pump
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH