{HEAD ~ Deposit interaction elements} may be employed to influence {TAIL ~ the distribution} or redistribution of deposits within the trap device 
employed to influence
{ HEAD ~ Deposit interaction elements } may be employed to influence { TAIL ~ the distribution } or redistribution of deposits within the trap device
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH