Three boys wearing yellow lifevests on a raft on the water.
Three brothers go white water rafting.
One cannot assume that the boys are brothers or that they are going white water rafting.
exists e1 s1 x1 x2 x3 x4 x5.(n_water(x5) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & on(x3,x4) & on(x4,x5) & n_raft(x4) & n_lifevest(x3) & a_yellow(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1) & card_eq_3(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_go(e1) & n_rafting(x2) & of(x2,x3) & n_water(x3) & a_white(s1) & Theme(s1,x2) & n_brother(x1) & card_eq_3(x1))