preparing {HEAD ~ an aqueous emulsion} of {TAIL ~ crude anethole} by combining crude anethole, emulsifier, and water at a temperature above the melting point of the crude anethole and agitating the mixture 
of
preparing { HEAD ~ an aqueous emulsion } of { TAIL ~ crude anethole } by combining crude anethole , emulsifier , and water at a temperature above the melting point of the crude anethole and agitating the mixture
OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH