A young man in a plan white t-shirt is playing electric guitar on stage.
the man is in a plain shirt
A man can be young.  A plain shirt can be a white t-shirt.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(on(e1,x5) & n_stage(x5) & Theme(e1,x4) & Actor(e1,x1) & v_play(e1) & n_guitar(x4) & a_electric(s3) & Theme(s3,x4) & in(x1,x2) & n_t-shirt(x2) & a_white(s2) & Theme(s2,x2) & of(x2,x3) & n_plan(x3) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1.(n_man(x1) & exists s1 x2.(in(x1,x2) & n_shirt(x2) & a_plain(s1) & Theme(s1,x2)))