Men and sheet gather on the street.
Men and sheet gather together to party on the street.
The men may not be getting together for a party. They could just be going to a gathering for another reason.
exists e1 x1 x2 x3 x4.(n_street(x4) & on(e1,x4) & Actor(e1,x1) & v_gather(e1) & subset_of(x3,x1) & n_sheet(x3) & subset_of(x2,x1) & n_man(x2))
exists e1 s1 x1 x2 x3 x4 x5.(n_street(x5) & a_together(s1) & Manner(e1,s1) & to(e1,x4) & on(x4,x5) & n_party(x4) & Actor(e1,x1) & v_gather(e1) & subset_of(x3,x1) & n_sheet(x3) & subset_of(x2,x1) & n_man(x2))