Two men sit side by side next to a green plant.
Two men sit next each other and chat.
Not all men that sit next to each other chat.
exists e1 s1 x1 x2 x3 x4 x5.(by(e1,x3) & to(x4,x5) & n_plant(x5) & a_green(s1) & Theme(s1,x5) & next(x3,x4) & n_thing(x4) & n_side(x3) & Theme(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_side(x2) & n_man(x1) & card_eq_2(x1))
all x1 x3 x2.((n_chat(x3) & n_other(x2) & subset_of(x3,x1) & subset_of(x2,x1)) -> exists e1 x4.(r_next(e1) & Time(e1,x1) & Actor(e1,x4) & v_sit(e1) & n_man(x4) & card_eq_2(x4)))