a person in pink pants playing a guitar
An individual wearing pink plays the guitar
A person and an individual are the same thing, so these sentences both describe the person wearing pink pants and playing the guitar.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_guitar(x4) & (x2 = x3) & n_pants(x2) & a_pink(s1) & Theme(s1,x2) & n_person(x1))
exists e1 e2 s1 x1 x2.(n_guitar(x2) & Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & n_pink(x1) & Actor(e1,x1) & v_wear(e1) & a_individual(s1) & Theme(s1,x1))