{TAIL ~ These solvents} included acetonitrile, {HEAD ~ dioxane}, acetone, and tetrahydrofuran, but not to the exclusion of others 
{ TAIL ~ These solvents } included acetonitrile , { HEAD ~ dioxane } , acetone , and tetrahydrofuran , but not to the exclusion of others
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH