A young boy, throwing a stone into calm water.
A boy tries to throw a stone farther than his older brother
We have no way of knowing if the stone was thrown farther, and cannot infer that his older brother was there, or had thrown a stone at all.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & into(e1,x4) & n_water(x4) & a_calm(s2) & Theme(s2,x4) & Theme(e1,x3) & Actor(e1,x2) & v_throw(e1) & n_stone(x3) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 s1 x1 x3.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2.(r_farther(e2) & than(e2,x3) & Theme(e2,x2) & Actor(e2,x1) & v_throw(e2) & n_stone(x2)) & n_brother(x3) & r_more(s1) & a_older(s1) & Theme(s1,x3) & of(x3,x1) & n_male(x1) & n_boy(x1))