Hipster performs on the acoustic guitar.
The staight-laced musician plays a solemn tune on his trumpet.
Guitar and trumpet are different instruments. If someone is a hipster, then he is not straight-laced.
exists e1 s1 x1 x2.(n_guitar(x2) & a_acoustic(s1) & Theme(s1,x2) & ne_nam_hipster(x1) & on(e1,x2) & Actor(e1,x1) & v_perform(e1))
exists e1 s1 s2 x1 x2 x3.(n_trumpet(x3) & of(x3,x1) & n_male(x1) & n_musician(x1) & a_staight-laced(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & on(x2,x3) & n_tune(x2) & a_solemn(s2) & Theme(s2,x2))