In {TAIL ~ certain preferred embodiments}, {HEAD ~ the molar ration} of :A is in the range of 1:1 to 1:10 
In { TAIL ~ certain preferred embodiments } , { HEAD ~ the molar ration } of : A is in the range of 1:1 to 1:10
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH