For applications such as candles, {HEAD ~ the wax} commonly includes {TAIL ~ a hydrogenated vegetable oil and palmitic acid} 
commonly includes
For applications such as candles , { HEAD ~ the wax } commonly includes { TAIL ~ a hydrogenated vegetable oil and palmitic acid }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL