The girl on the unicycle reaches out for the child on the scooter.
Girl riding unicycle trying to grab child on a scooter.
Trying to grab is a rephrasing of reaches out for.
exists e1 s1 x1 x2 x3 x4.(n_scooter(x4) & n_child(x3) & n_unicycle(x2) & n_girl(x1) & on(e1,x4) & a_out(s1) & Manner(e1,s1) & for(e1,x3) & Actor(e1,x1) & v_reach(e1) & on(x1,x2))
exists e1 p1 x1 x2 x3 x4.(a_topic(x1) & Topic(e1,p1) & Actor(e1,x4) & v_try(e1) & exists e2 x5 x6.(on(e2,x6) & n_scooter(x6) & Theme(e2,x5) & Actor(e2,x4) & v_grab(e2) & n_child(x5)) & (x1 = x4) & n_unicycle(x1) & of(x1,x3) & n_riding(x3) & (x1 = x2) & ne_nam_girl(x2))