However, if the referenced object does not understand the message sent, then the remaining alternate dispatch variables are searched for a determination of whether these other alternate dispatch variables may contain values referencing other objects to be tested for {HEAD ~ fulfillment} of {TAIL ~ the method requirements} of the message sent 
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However , if the referenced object does not understand the message sent , then the remaining alternate dispatch variables are searched for a determination of whether these other alternate dispatch variables may contain values referencing other objects to be tested for { HEAD ~ fulfillment } of { TAIL ~ the method requirements } of the message sent
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH