If {HEAD ~ a recipient} of {TAIL ~ the email} selects one of the product images presented in the email, an identifier of the selected image and information about the email recipient are forwarded to the product vendor 
If { HEAD ~ a recipient } of { TAIL ~ the email } selects one of the product images presented in the email , an identifier of the selected image and information about the email recipient are forwarded to the product vendor
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH