The boy runs with the basketball while looking up.
The boy is playing the violin.
You can’t be running and playing the violin at the same time
exists e2 e1 s1 x1 x2.(n_basketball(x2) & n_boy(x1) & while(e1,e2) & a_up(s1) & Manner(e2,s1) & Actor(e2,x1) & v_look(e2) & with(e1,x2) & Actor(e1,x1) & v_run(e1))
exists e1 x1 x2.(n_violin(x2) & n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))