Interesting! The answer is, of course, we don't know. They didnt say to me that it was a mistake... I do believe that Im not the only person who has run into this. Berkeley did not immediately respond to a request for comment from the DCNF. So first, *please* everyone take English and humanities classes at college.
burack is interested in politics.
( z0 interest :ARG1 ( z1 person :name ( z2 name :op "Barack" ) ) :ARG2 ( z3 politics ) )
(z0 / interest-01
    :ARG1 (z1 / person
              :name (z2 / name
                        :op1 "Barack"))
    :ARG2 (z3 / politics))
burack is interested in politics .
z1 :name z2
z2 :op1 0
z0 :ARG1 z1
z0 :ARG2 z3