After a government prosecution that lasted nearly seven years, a federal jury Wednesday convicted home-run king Barry Bonds on one charge of obstruction of justice for allegedly lying about using performance-enhancing drugs. Read the full story here: Los Angeles Times – Top News
All government prosecutions last seven years.
Not all last seven years - just this one happened to.
( z1 prosecute :ARG0 ( z2 government-organization :ARG0-of ( z3 govern ) ) :mod ( z4 all ) :time ( z5 before :op ( z6 now ) :duration ( z7 temporal-quantity :quant 7 :unit ( z8 year ) ) ) )