A large number of people are sitting in metal chairs watching a man in front.
A group of people watching a dog do tricks
There can either be a group of people watching a man or watching a dog do tricks.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(for(e1,e2) & in(e2,x6) & n_front(x6) & Theme(e2,x5) & Actor(e2,x1) & v_watch(e2) & n_man(x5) & in(e1,x3) & n_chair(x3) & of(x3,x4) & n_metal(x4) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_number(x1) & a_large(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x1) & v_do(e2) & n_trick(x5) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & n_dog(x4) & (x2 = x3) & n_people(x2) & n_group(x1))