In a further aspect of the present invention, {HEAD ~ a trap device} may include {TAIL ~ movable elements} that interact with deposits therein 
include
In a further aspect of the present invention , { HEAD ~ a trap device } may include { TAIL ~ movable elements } that interact with deposits therein
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH