A young man dressed in black is playing a Yamaha musical instrument.
The man is dressed formally.
A man could play any musical instrument dressed in any number of ways, formally or informally.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_play(e2) & n_instrument(x4) & a_musical(s3) & Theme(s3,x4) & (x4 = x5) & ne_org_yamaha(x5) & Theme(e1,s2) & Theme(s2,x3) & a_black(s2) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1.(n_man(x1) & a_formally(s1) & Manner(e1,s1) & Theme(e1,x1) & v_dress(e1))