{HEAD ~ These functionalized supports} can be used for synthesizing small molecules as well as {TAIL ~ large molecules}  
used for synthesizing
{ HEAD ~ These functionalized supports } can be used for synthesizing small molecules as well as { TAIL ~ large molecules }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH