Brad learns his lesson<br>Brad wanted to get drunk for the first time ever. He was throwing a huge party and invited all his friends. They all got drunk as they could. Brad threw up all over the place. He woke up with a massive headache and learned to never drink again.
Brad has at least 0 friends
It says he invited all his friends, which is at least 1. 1 is at least 0. The system gets confused by this syntax of at least 0
( z1 have-rel-role :ARG0 ( z2 person :quant ( z3 at-least :op 0 ) ) :ARG1 ( z4 person :name ( z5 name :op "Brad" ) ) :ARG2 ( z6 friend ) )