your question is difficult to understand. if you like to the sentence in your example out of enumeration, than just put this sentence after enumeration.
in case, that this sentence is somewhere middle of enumeration in like to have, that after it enumeration continue to with enumeration, then for such a task is useful package mdwlist:
\documentclass{article}\usepackage{mdwlist} \begin{document}\begin{enumerate} \item first item \item second item \item third item \suspend{enumerate}Text outside of enumerate \resume{enumerate} \item fourth item \item fifth item \end{enumerate}\end{enumerate} \end{document}on above principle you can suspend enumerate list inside of an enumeration.
