A boy just chilling in the water.
A boy is running.
Chilling in the water usually means sitting down and resting, not running.
exists e1 s1 x1 x2 x3.(n_water(x3) & a_topic(x1) & in(e1,x3) & a_just(s1) & Manner(e1,s1) & Actor(e1,x2) & v_chill(e1) & (x1 = x2) & n_boy(x1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_boy(x1))