Jessica Litman, a law professor at Michigan's Wayne State University, has specialized in copyright law and Internet law for more than 20 years.
 Jessica Litman has specialized in copyright law and Internet law for less than 3 years.
( z1 specialize :ARG0 ( z2 person :name ( z3 name :op "Jessica" :op "Litman" ) ) :ARG1 ( z4 and :op ( z5 law :topic ( z6 copyright ) ) :op ( z7 law :topic ( z8 internet ) ) ) :duration ( z9 less-than :op ( z10 temporal-quantity :quant 3 :unit ( z11 year ) ) ) )