We analyse the recent precision measurements of the lepton-hadron deepinelastic scattering at CERN and SLAC to extract model independent constraintsamong the nucleon matrix elements of the twist-4 operators. We also study aparameterization of these matrix elements and point out the possibility thatthe matrix elements of the quark-gluon mixed operator has a negative value ofthe order of $- (400 \pm 100\ {\rm MeV})^2$ at 5 GeV$^2$ renormalization scale.
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