A sitting man playing the violin.
A young boy is learning violin from a sitting man.
Just because a man is playing the violin doesn't necessarily mean a young boy is learning violin.
exists e2 e1 x1 x2 x3.(n_violin(x3) & a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_play(e2) & (x1 = x2) & n_man(x1) & Actor(e1,x1) & v_sit(e1))
exists e1 e2 s1 x1 x2 x3.(from(e1,x3) & n_man(x3) & Actor(e2,x3) & v_sit(e2) & Theme(e1,x2) & Actor(e1,x1) & v_learn(e1) & n_violin(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))