Two boys in black swimming trunks are holding another boy by his arms and legs on a beach.
Three boys are on a beach.
If two boys are holding another boy, then there are three boys in total.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(on(e1,x8) & n_beach(x8) & by(e1,x5) & n_leg(x7) & n_arm(x6) & subset_of(x7,x5) & subset_of(x6,x5) & of(x5,x2) & n_male(x2) & Theme(e1,x4) & Actor(e1,x1) & v_hold(e1) & n_boy(x4) & -(x4 = x1) & n_boy(x1) & n_boy(x1) & in(x1,x2) & n_trunk(x2) & of(x2,x3) & n_swimming(x3) & a_black(s1) & Theme(s1,x2) & card_eq_2(x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_beach(x2)) & n_boy(x1) & card_eq_3(x1))