A man playing a violin in a bar.
A human playing a violin
A man is a human, and he is playing a violin.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_bar(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_violin(x3) & (x1 = x2) & n_man(x1))
all x1.(n_violin(x1) -> exists s1 x2.(a_topic(x2) & for(x2,x1) & n_playing(x2) & a_human(s1) & Theme(s1,x2)))