Two African Americans are together and one is wearing a cowboy hat while playing the guitar while the other is standing with sunglasses on.
One black person is singing.
It does not necessarily follow that a black person is an African American as he or she could simply be from another country. The get up and activities of the two do not imply that one of them is singing.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5 x6.(n_other(x6) & n_guitar(x5) & ne_nam_americans(x1) & a_african(s1) & Theme(s1,x1) & card_eq_2(x1) & while(e1,e2) & exists e3 s3 x7.(a_on(s3) & Manner(e3,s3) & with(e3,x7) & n_sunglass(x7) & Actor(e3,x6) & v_stand(e3)) & while(e2,p1) & Theme(e2,x5) & Actor(e2,x2) & v_play(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & of(x3,x4) & n_cowboy(x4) & n_thing(x2) & card_eq_1(x2) & Theme(s2,x1) & a_together(s2))
exists e1 s1 x1.(Actor(e1,x1) & v_sing(e1) & n_person(x1) & a_black(s1) & Theme(s1,x1) & card_eq_1(x1))