A crowd of people gathered around in a city.
There is a writhing mass of people in the center of the city
Sentence 1: A crowd of people gathered around in a city. Sentence 2: There is a writhing mass of people in the center of the city
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & in(e1,x4) & n_city(x4) & a_around(s1) & Manner(e1,s1) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists p1 x1 x4 x5.(n_city(x5) & n_center(x4) & exists e1 x2 x3.((x1 = x2) & of(x2,x3) & in(x3,x4) & of(x4,x5) & n_people(x3) & n_mass(x2) & Actor(e1,x2) & v_writhe(e1)))