The Si forming solution may be coated on a substrate and {HEAD ~ a solvent} in {TAIL ~ the Si forming solution} may be coated on the substrate 
in
The Si forming solution may be coated on a substrate and { HEAD ~ a solvent } in { TAIL ~ the Si forming solution } may be coated on the substrate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH