{HEAD ~ The apparatus} may further include {TAIL ~ one or more sources} of a sanitizing agent configured to direct the sanitizing agent toward the point of contact surface 
include
{ HEAD ~ The apparatus } may further include { TAIL ~ one or more sources } of a sanitizing agent configured to direct the sanitizing agent toward the point of contact surface
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH