  We propose a third-order WENO reconstruction which satisfies the sign
property, required for constructing high resolution entropy stable finite
difference scheme for conservation laws. The reconstruction technique, which is
termed as SP-WENO, is endowed with additional properties making it a more
robust option compared to ENO schemes of the same order. The performance of the
proposed reconstruction is demonstrated via a series of numerical experiments
for linear and nonlinear scalar conservation laws. The scheme is easily
extended to multi-dimensional conservation laws.
