Four police officers are swallowed up by the large crowd of people on the street.
The officers are working the streets for Mardi Gras.
Officers can be in a crowd of people at other events besides Mardi Gras.
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_street(x5) & n_crowd(x3) & a_large(s2) & Theme(s2,x3) & Actor(e1,x3) & on(x3,x5) & of(x3,x4) & n_people(x4) & a_up(s1) & Manner(e1,s1) & Theme(e1,x1) & v_swallow(e1) & n_officer(x1) & of(x1,x2) & n_police(x2) & card_eq_4(x1))
exists e1 x1 x2 x3 x4.(ne_geo_gras(x3) & (x3 = x4) & ne_geo_mardi(x4) & n_street(x2) & n_officer(x1) & for(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_work(e1))