A man jokes with his friends as they all sit in camping chairs joking and eating.
Some men are outside in chairs.
A man and his friends are men.  Chairs can be camping chairs.
exists e1 p1 x1 x2.(all x3.((x3 = x1) -> exists e3 e5 e4 e2 x4 x5.(in(e2,e5) & Actor(e5,x3) & v_eat(e5) & in(e2,e4) & Theme(e4,x4) & Actor(e4,x3) & v_camp(e4) & Actor(e3,x5) & v_joke(e3) & (x4 = x5) & n_chair(x4) & Actor(e2,x3) & v_sit(e2))) & n_thing(x1) & as(e1,p1) & with(e1,x2) & n_friend(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_joke(e1) & n_man(x1))
exists s1 x1 x2.(in(s1,x2) & n_chair(x2) & Theme(s1,x1) & a_outside(s1) & n_man(x1))