An old man is standing before a crowd to perform a feat.
An oldtimer about to perform before a group of people.
Oldtimer is another way to refer to an old man and a group of people is a crowd.
exists e1 p1 s1 s2 x1 x2 x3.(Topic(e1,p1) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_perform(e2) & n_feat(x4)) & before(e1,x3) & n_crowd(x3) & Actor(e1,x2) & v_stand(e1) & n_man(x2) & a_old(s2) & Theme(s2,x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists p1 s1 x1 x2.(a_topic(x1) & Topic(s1,p1) & Actor(s1,x2) & a_about(s1) & exists e1 x3 x4.(before(e1,x3) & of(x3,x4) & n_people(x4) & n_group(x3) & Actor(e1,x2) & v_perform(e1)) & (x1 = x2) & n_oldtimer(x1))