Man kayaking in a raging river.
It is summer time.
Not all kayaking is done in the summer.
exists e1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_river(x3) & Actor(e1,x3) & v_rage(e1) & n_kayaking(x1) & of(x1,x2) & n_man(x2))
exists p1 x1.(n_thing(x1) & exists x2 x3.((x1 = x2) & n_time(x2) & of(x2,x3) & n_summer(x3)))