Mr Lopez Obrador was "sworn in" by Senator Rosario Ibarra, a human rights activist and member of his party, who placed a red, green and white presidential sash across his shoulders.
Mr. Lopez Obrador was the new president.
The man was being sworn in, and given a "presidential" sash, but the article does not specifically say what position he was being sworn in for. I think this fooled the system because it can't look for missing information.
( z1 have-org-role :ARG0 ( z2 person :name ( z3 name :op "Mr." :op "Lopez" :op "Obrador" ) ) :ARG2 ( z4 president :ARG1-of ( z5 new ) ) )