10 10 65
  The MRS parton distribution functions (PDF, two sets, MRS(A')
and MRS(G)) describe the momentum distributions of quarks and 
gluons in the proton or the antiproton. 
  For the A' set the sea quark and gluon distributions are 
parameterized at small x by the x^(-Lambda) function, where 
the universal parameter Lambda is the same for all distributions.
  The G set uses different Lambda parameters for the sea quark 
and the gluon distributions. QCD theoretical motivation is in favor
of the universal Lambda parameter (A' set), but the experimental 
data fit for the G set is better.
  The PDF Q-dependence is calculated in the NLO approximation within 
the MSbar scheme, Alpha_s(MZ)=0.113/0.114 for A' case/G case. 
The variation ranges of x, Q^2 variables are
               10^-5 < x < 1
               5 GeV^2 < Q^2 < 1310720 GeV^2 
See details in
  A.D.Martin, R.G.Roberts, W.J.Stirling, Phys.Lett. B354 (1995) 155

The type of the distribution and the name of initial particle are
indicated in brackets and can be changed by the user.