Two Latinos playing instruments; one on the violin and the other on harp.
Two Latinos are playing music on stage.
Latinos do not have to be on stage playing music to be playing instruments.
exists e1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_other(x8) & n_violin(x7) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & subset_of(x5,x3) & subset_of(x8,x5) & on(x8,x9) & n_harp(x9) & subset_of(x6,x5) & on(x6,x7) & n_thing(x6) & card_eq_1(x6) & subset_of(x4,x3) & n_instrument(x4) & (x1 = x2) & n_latino(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_latino(x1) & card_eq_2(x1))