A dark-haired man in a green shirt is playing the drums with a bass player in the background.
They 2 musicians are brothers.
Two men playing music together are not necessarily brothers.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_background(x6) & n_drum(x3) & with(e1,x4) & in(x4,x6) & n_player(x4) & of(x4,x5) & n_bass(x5) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_shirt(x2) & a_green(s2) & Theme(s2,x2) & n_man(x1) & a_dark-haired(s1) & Theme(s1,x1))
exists p1 x1.(n_thing(x1) & a_topic(x1) & exists p2 x2.(exists x3.((x2 = x3) & n_brother(x3)) & n_musician(x2) & n_date(x2) & a_date_day_02(x2) & a_date_day_02(x2)) & that(x1,p1))