A man with a backpack and two children are on the beach.
A man and his children are having fun.
They have fun at the beach.
exists p1 x1 x2 x3 x4.(n_beach(x4) & on(x1,x4) & with(x1,x2) & n_child(x2) & card_eq_2(x2) & of(x2,x3) & n_backpack(x3) & n_man(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_have(e1) & n_fun(x4) & subset_of(x3,x1) & n_child(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))