A man with a microphone reads from a piece of paper as he stands in front of two men holding tubas.
The two men holding tubas are about to play a solo after being introduced.
The fact that a man with a microphone reads from a piece of paper as he stands in front of two men holding tubas doesn't imply that men holding tubas are abuot to play a solo and after being introduced.
exists e1 p1 x1 x2 x3 x4.(exists e3 e2 x5 x6 x7 x8.(in(e2,x5) & of(x5,x6) & Theme(e3,x8) & Actor(e3,x7) & v_hold(e3) & n_tuba(x8) & (x6 = x7) & n_man(x6) & card_eq_2(x6) & n_front(x5) & Actor(e2,x1) & v_stand(e2)) & n_male(x1) & as(e1,p1) & from(e1,x3) & of(x3,x4) & n_paper(x4) & n_piece(x3) & Actor(e1,x1) & v_read(e1) & with(x1,x2) & n_microphone(x2) & n_man(x1))
exists e1 p1 s1 x1 x2 x3.(n_man(x1) & card_eq_2(x1) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e3 e2 x4.(after(e2,e3) & Theme(e3,x1) & v_introduce(e3) & Theme(e2,x4) & Actor(e2,x1) & v_play(e2) & n_solo(x4)) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_tuba(x3) & (x1 = x2))