{HEAD ~ Control release capsules} comprising {TAIL ~ a breaker} contained within a enclosure member are employed to break fracturing fluids 
comprising
{ HEAD ~ Control release capsules } comprising { TAIL ~ a breaker } contained within a enclosure member are employed to break fracturing fluids
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH