Lamont Jody Hawkins (born October 11, 1970), better known as U-God (short for Universal God), is an American rapper and member of the hip hop collective, Wu-Tang Clan. He has been with the group since its inception, and is known for having a deep, rhythmic flow that can alternate between being gruff or smooth.
Lamont Hawkins has been with his group for over 20 years.
There is no clear clarification within the text that says how long the rapper has been a member of Wu-Tang. Therefore it's neither correct or incorrect to say he's been with them for over 20 years.
( z1 be-with :ARG0 ( z2 person :name ( z3 name :op "Lamont" :op "Hawkins" ) ) :ARG1 ( z4 group :poss ( z5 he ) ) :duration ( z6 over :op ( z7 temporal-quantity :quant 20 :unit ( z8 year ) ) ) )