Because there is none. Why did this happen? Why did this happen? Please make sure your browser supports JavaScript and cookies and that you are not blocking them from loading. Please make sure your browser supports JavaScript and cookies and that you are not blocking them from loading.
The man is older than the president.
( z0 have-degree :ARG1 ( z1 man ) :ARG2 ( z2 old ) :ARG3 ( z3 more ) :ARG4 ( z4 person :ARG0-of ( z5 have-org-role :ARG2 ( z6 president ) ) ) )
(z0 / have-degree-91
    :ARG1 (z1 / man)
    :ARG2 (z2 / old)
    :ARG3 (z3 / more)
    :ARG4 (z4 / person
              :ARG0-of (z5 / have-org-role-91
                           :ARG2 (z6 / president))))
The man is older than the president .
z0 :ARG1 z1
z0 :ARG2 z2
z0 :ARG3 z3
z0 :ARG4 z4
z4 :ARG0-of z5
z5 :ARG2 z6