{HEAD ~ A difference} between the first conditions and {TAIL ~ the second conditions} can be, for example, that the second conditions comprise a higher temperature than the first conditions 
between
{ HEAD ~ A difference } between the first conditions and { TAIL ~ the second conditions } can be , for example , that the second conditions comprise a higher temperature than the first conditions
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH