{HEAD ~ The produced bank filter terms} include at least one combination of {TAIL ~ two cross symmetric bank filter terms}: 
{ HEAD ~ The produced bank filter terms } include at least one combination of { TAIL ~ two cross symmetric bank filter terms } :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH