A large crowd standing in front of a busy building.
A single person is fishing by the pond.
large crowd refers to a group of people, single person refers to a solitary person
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & of(x3,x4) & n_building(x4) & a_busy(s2) & Theme(s2,x4) & n_front(x3) & n_standing(x1) & of(x1,x2) & n_crowd(x2) & a_large(s1) & Theme(s1,x1))
exists p1 s1 x1 x3.(n_pond(x3) & exists x2.((x1 = x2) & by(x2,x3) & n_fishing(x2)) & n_person(x1) & a_single(s1) & Theme(s1,x1))