If a value has been assigned to a particular alternate dispatch variable, then {HEAD ~ the message} sent to {TAIL ~ the initial object} is transmitted to the object referenced by the alternate dispatch variable for which a value has been determined 
sent to
If a value has been assigned to a particular alternate dispatch variable , then { HEAD ~ the message } sent to { TAIL ~ the initial object } is transmitted to the object referenced by the alternate dispatch variable for which a value has been determined
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH