{HEAD ~ The task enqueue operation} includes adding {TAIL ~ the received task} to an associated queue of the scheduling hierarchy, where the queue is associated with a data flow of the received task 
includes adding
{ HEAD ~ The task enqueue operation } includes adding { TAIL ~ the received task } to an associated queue of the scheduling hierarchy , where the queue is associated with a data flow of the received task
HEAD HEAD 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 OTH OTH OTH OTH